Here we go.....
As of 4/30/14
88 Omnibus titles have been released to date. 38 titles are currently Out of Print with another 11 titles getting close.
Good news as the Alias Omnibus will be coming back into print in September 2014.
For the 11 titles that are getting close to going Out of Print I have listed sites that still have them in stock. You can also still find deals for them on Ebay and Amazon Marketplace.
Use this very helpful guide to know what issues are in each omnibus, cost per page, which era etc...
http://crushingkrisis.com/collecting...ibus-editions/
Out of Print
Alias Omnibus -
Coming back in print (September 2014)
Silver Surfer Omnibus
Amazing Fantasy Omnibus
Devil Dinosaur Omnibus
Eternals Omnibus
Howard the Duck Omnibus
Daredevil Omnibus Companion Frank Miller
Daredevil Omnibus Volume 1 (Bendis)
Daredevil Omnibus Volume 2 (Bendis)
Daredevil Omnibus Volume 1 (Brubaker)
Daredevil Omnibus Volume 2 (Brubaker)
Elektra Omnibus
Tomb of Dracula Omnibus Volume 1
Tomb of Dracula Omnibus Volume 2
Punisher (Ennis) Omnibus
The Ultimates Omnibus
Iron Man Omnibus Volume 1
X-Men Omnibus Volume 1
Wolverine Omnibus, Volume 1
Captain Britain Omnibus
Immortal Iron Fist Omnibus
The Death of Captain America Omnibus
Thor Omnibus Volume 1
Captain America Omnibus (Brubaker)
Astonishing X-Men Omnibus
Iron Man Omnibus Volume 2
Ghost Rider Omnibus
Thor (JMS) Omnibus
Thor Walter Simonson Omnibus
Captain America Omnibus Volume 1
Secret Wars Omnibus
Secret Wars II Omnibus
Hulk Omnibus Volume 1
Acts of Vengeance Omnibus
X-Men: Age of Apocalypse Omnibus
Spider-man Omnibus Volume 2
Secret Warriors Omnibus
Captain America Lives Omnibus
Almost Out of Print
Golden Age of Marvel Omnibus Vol. 1 * (CGN, TOW & IST) * (Direct Market cover sold out)
Woman of Marvel Omnibus (TOW, IST) * (Direct Market cover available)
Captain America Omnibus by Jack Kirby (Amazon)
X-Men Omnibus Volume 2 * (Amazon) * (Direct Market cover sold out)
X-Men Claremont / Lee Omnibus Volume 1 * (CGN) * (Direct Market cover sold out)
Tomb of Dracula Omnibus Volume 3 * (TOW) * (Direct Market cover available CGN, TOW, IST)
Evolutionary War Omnibus (CGN, IST, Amazon) * (Direct Market cover sold out)
Squadron Supreme Omnibus * (CGN, TOW, IST) * (Direct Market cover at CGN)
Spiderman MacFarline Omnibus * (CGN, TOW)* (Direct Market cover available at CGN)
Untold Tales of Spider-man Omnibus (CGN) * (Direct Market cover sold out)
Iron Man Omnibus Layton/JRjr (Amazon, TOW, IST) * (Direct Market cover sold out)
Punisher Omnibus (Amazon, TOW, CGN)
Instock everywhere (includes Amazon - Barnes & Noble)
Atlantis Attacks Omnibus * (Direct Market cover available)
Acts of Vengeacne Crossovers Omnibus * (Direct Market cover available at IST & CGN)
Wolverine Jason Aaron Omnibus
Dark Tower Omnibus
Fantastic Four John Byrne Omnibus Volume 1 * (Direct Market cover available at CGN, IST,TOW)
John Carter: Warlord of Mars Omnibus * (Direct Market cover sold out)
Avengers Volume 1 Omnibus * (Direct Market cover available at CGN)
X-Statix Omnibus
X-men Claremont / Lee Omnibus Volume 2 * (Direct Market cover sold out)
Ultimate Avengers Omnibus
Avengers: The Crossing * (Direct Market cover available at CGN, IST & TOW)
Ulitmate Spider-man Omnibus Volume 1 * (Direct Market cover available at CGN)
New X-Men Omnibus (2nd Printing)
The Stand Omnibus
New Avengers Omnibus Volume 1 * (Direct Market cover available at CGN, IST & TOW)
Marvel Zomnibus
Man-Thing Omnibus * (Direct Market cover available at CGN)
Ultimate Death of Spider-man Omnibus
X-Force Omnibus Volume 1 * (Direct Market cover available at CGN)
West Coast Avengers Omnibus Volume 1 * (Direct Market cover available at CGN, IST, TOW)
New Warriors Omnibus Volume 1 * (Direct Market cover available at CGN, IST, TOW)
Wolverine by Mark Miller Omnibus
Marvel Now Omnibus
Thor Omnibus Volume 2 * (Direct Market cover available at GCN)
Spiderman Omnibus Volume 1 (3rd Printing)
Iron Man by Kurt Busiek & Sean Chen Omnibus
Uncanny X-Men Volume 1 Omnibus (3rd Printing)
Fantastic Four Omnibus Volume 1 (3rd Printing)
Fantastic Four by Jonathan Hickman Omnibus Volume 1
West Coast Avengers Omnibus Volume 2 * (Direct Market cover available at GCN, IST, TOW)
Daredevil Omnibus Frank Miller (2nd Printing)
Fantastic Four Omnibus Volume 2 (2nd Printing)
Fantastic Four John Byrne Omnibus Volume 2 * (Direct Market cover available at CGN)
Deadpool Omnibus * (Direct Market cover available at CGN, TOW & IST)
Golden Age of Captain America Omnibus * (Direct Market cover available at CGN, TOW & IST)
Uncanny X-Force Omnibus
Spider-Man by Roger Stern * (Direct Market cover available at CGN)
Uncanny X-Men Omnibus Volume 2 * (Direct Market cover available at CGN)
Store listing and guide (by Krisis) (Updated a few things)
Amazon (including .ca, .uk, etc)
Discounts: 5-48%, but also charges tax in some states
Pre-Orders: Yes; you are charged the lowest price prior to release and billed upon shipment.
US Shipping: Free from $25 up, or free 2-day with Prime subscription.
Int'l Shipping: Yes, but there are also Int'l Amazon sites. Often is the cheapest option due to discounts and shipping cost. AU/NZ may order from US or UK.
Packaging: Occasional poor packaging leads to damaged books, especially on larger volumes - but it differs by shipping center.
Returns: Within US pays return cost for damaged books.
Barnes & Noble (AKA BN or B&N)
Discounts: Generally 5-45%, and will price-match Amazon. Issues regular coupon codes to subscribers.
Pre-Orders: Yes; credit cards are briefly pre-charged to confirm funds and then fully charged when books are shipped.
US Shipping: Free $25 and up
Int'l Shipping: Per item charges
Packaging: Generally considered the least reliable by the board.
Returns: [Anyone? Do they pay for return label]
Book Depository (.com and .uk) aka BD
Discounts: Discounts vary, but are generally <20%.
Pre-Orders: Yes; fixed at 15% off. You are charged when order is placed.
US Shipping: Free
Int'l Shipping: Yes, free!
Packaging: Generally reliable, but can be problematic for larger/heavier books.
Returns: Will return/refund [but, who pays shipping?]
CheapGraphicNovels.com (aka CGN)
Discounts: 45% on new Marvel/DC books, less for other publishers. 50% off on many week-of-release titles. $7 flat rate shipping.
Pre-Orders: No, but you can set a reminder to be informed when a book arrives in stock
US Shipping: $6 flat rate, no exceptions.
Int'l Shipping: Priced per box, check site for current rates.
Packaging: They describe it as "bomb-proof" - generally reported consistent on the board. Some reported errors.
Returns: You pay shipping
Dcbservice.com (aka DCBS)
Discounts: >30%, but 50% off weak of release
Pre-Orders: Yes, billed at time of pre-order
US Shipping: $7 flat rate
Int'l Shipping: Asks users to inquire prior to ordering
Packaging: [Anyone?]
Returns: [Anyone?]
Instocktrades (aka IST)
Discounts: 30-42%, generally 40% for major publishers
Pre-Orders: No, but you can wishlist upcoming books.
US Shipping: Free from $50
Int'l Shipping: No Int'l shipping.
Packaging: Best packaging out there for books!!!!
Returns: Accepted for damaged books
Mile High Comics (aka MHC)
Discounts: Codeword sales vary widely up tp 60%, but do not always apply to TPBs/HC; you must subscribe to their newsletter to receive codes.
Pre-Orders: No
US Shipping: Free higher than $30, but surcharge for HCs and oversized books
Int'l Shipping: Free higher than $60, but surcharge for HCs and oversized books
Packaging: Consistent packaging (some reported errors)
Returns: Can be unresponsive to customer service issues, but do offer replacements
Tales of Wonder (aka TOW) * Now owned by DCBS / InstockTrades.com
Discounts: Generally close to 30%. Offers sales on categories of books (i.e., Masterworks, Avengers, Marvel TPBs)
Pre-Orders: Yes - you are charged at the time of pre-order and the entire order ships when the LAST book is released
US Shipping: Flat rate plus per-item free, but free over $99
Int'l Shipping: Yes, in various Flat Rate envelopes/boxes
Packaging: Best packaging out there for books.
Returns: Will issue a return label and a refund or replacement for damaged items