Some of the omni's added were:
**Ended**
Absolute Flashpoint $28 http://www.amazon.com/Absolute-Flash.../dp/1401286267
GotG by Duggan $33 http://www.amazon.com/Guardians-Gala.../dp/1302913158
Transformers: All Hail Megatron $33 http://www.amazon.com/Transformers-C...dp/1600109551/
Absolute Authority Vol. 1 $37 http://www.amazon.com/Absolute-Autho.../dp/1401276474
Joker Bronze Age $39 http://www.amazon.com/Joker-Bronze-A.../dp/1401293409
X-Men Legionquest $39 http://www.amazon.com/X-Men-Legionqu.../dp/1302910388
Deadpool by Way Vol. 2 $40 http://www.amazon.com/Deadpool-Danie.../dp/1302911414
Harley Quinn Vol. 3 $40 http://www.amazon.com/Harley-Amanda-.../dp/1401294464
Spider-Man Tangled Web $40 http://www.amazon.com/Spider-Mans-Ta...dp/1302906828/
Walking Dead Vol. 3 $41 http://www.amazon.com/Walking-Dead-O...dp/1607063301/
Earth X Omega $42 http://www.amazon.com/Earth-X-Trilog.../dp/130291622X
Hulk Dogs of War $42 http://www.amazon.com/Hulk-Dogs-War-.../dp/1302915940
The Fantastic Four $43 Lee/Kirby http://www.amazon.com/Fantastic-Four.../dp/1302913271
Secret Invasion $43 http://www.amazon.com/Secret-Invasio.../dp/1302912151
Thanos Wars $43 http://www.amazon.com/Thanos-Wars-In...dp/1302915304/
Batman by Snyder/Capullo $45 http://www.amazon.com/Batman-Scott-S.../dp/1401298842
Deadpool by Way Vol. 1 $45 http://www.amazon.com/Deadpool-Danie.../dp/130291006X
X-Men: Revolution $45 http://www.amazon.com/X-Men-Revoluti...dp/1302912143/
Absolute Hush $46 http://www.amazon.com/Batman-Hush-Ab.../dp/1401204260
Absolute Sandman Vol .1 $46 http://www.amazon.com/Absolute-Sandm...dp/1401210821/
Avenger Vol. 3 $46 http://www.amazon.com/Avengers-Omnib...dp/1302910205/
Captain Marvel $46 http://www.amazon.com/Captain-Marvel.../dp/1302915398
Fantastic Four by Waid $47 http://www.amazon.com/Fantastic-Four.../dp/1302913824
Monsters Vol. 2 $47 http://www.amazon.com/Monsters-Vol-M.../dp/1302908626
Walking Dead Vol. 8 $47 http://www.amazon.com/Walking-Dead-O.../dp/1534313567
X-Men: Eve of Destruction $47 http://www.amazon.com/X-Men-Eve-Dest.../dp/1302918257
Absolute Swamp Thing $48 http://www.amazon.com/Absolute-Swamp.../dp/1401284930
Grayson $48 http://www.amazon.com/Grayson-Supers.../dp/1401295053
Deadpool & Co. $49 http://www.amazon.com/Deadpool-Co-Om.../dp/1302910051
Hulk by Loeb/McGuinness $49 http://www.amazon.com/Hulk-Loeb-McGu.../dp/1302918052
Marvel Masters $49 http://www.amazon.com/Marvel-Masters.../dp/1302918753
Marvel Universe $49 http://www.amazon.com/Marvel-Univers.../dp/1302914014
Shang-Chi $49 http://www.amazon.com/Shang-Chi-Mast...dp/1302901311/
X-Men Wedding $49 http://www.amazon.com/X-Men-Wedding-.../dp/1302913220
Absolute Batman: Court of Owls $50 http://www.amazon.com/Absolute-Batma...dp/1401259103/
Punisher Max Vol. 2 $50 http://www.amazon.com/Punisher-Garth.../dp/1302912062
Sandman Vol. 1 $50 http://www.amazon.com/Sandman-Omnibu.../dp/1401241883
Spider-Man by Michelinie/Larsen $51 http://www.amazon.com/Spider-Man-Dav...dp/1302907026/
Injustice: Gods Among Us $54 http://www.amazon.com/Injustice-Gods.../dp/1401294987
JSA Vol. 3 $54 http://www.amazon.com/Omnibus-Vol-Ju...dp/1401255302/
Infinity $55 http://www.amazon.com/Infinity-Starl.../dp/1302915657
Lucifer $55 www.amazon.com/gp/product/1401294766
Savage Sword of Conan $55 Vol. 1 http://www.amazon.com/Savage-Sword-C.../dp/1302915320
Spider-Man by J.M.S. $55 http://www.amazon.com/Amazing-Spider.../dp/1302917064
GotG by Bendis $57 http://www.amazon.com/Guardians-Gala.../dp/1302900277
War of Kings: Aftermath $57 http://www.amazon.com/War-Kings-Afte.../dp/1302904477
Heroes Reborn $62 http://www.amazon.com/Heroes-Reborn-.../dp/1302918044
Infinity War $62 http://www.amazon.com/Infinity-War-O.../dp/1302915967
Bone: Full Color $63 www.amazon.com/gp/product/1888963271/
Dark Tower: Gunsliger Set $63 http://www.amazon.com/Stephen-Kings-.../dp/1982123168
Absolute Preacher Vol. 3 $67 http://www.amazon.com/Absolute-Preac...dp/1401278485/
Marvel Horror $68 http://www.amazon.com/Marvel-Horror-.../dp/1302919539
Timely's Greatest $71 http://www.amazon.com/Timelys-Greate.../dp/1302919342
**Ended**
There were some additons to the 3 for 2 offer http://www.amazon.com/gp/promotion/A...A1Y2LOO2M7NSEM you can get Y: The Last Man Omnibus, Invisibles Omnibus & New X-Men Omnibus for $183, which is ~$61 each. That's pretty good.