I'm been doing this to reduce the amount of longboxes in my room and well I been runs that I collected in floppy form and then when a Omnibus or Oversized Hardcover collecting that run comes in, I turn in the floppies in my boxes to turn in for cash in my local comic store. Get the Omnibus or hardcover when it comes out, Anyone does that. I'm currently doing it with my Aaron Thor, Ewing Immortal Hulk, Spencer Spider-man, Mckay Black Cat, ect, anyone run which has a omnibus coming out or the first part of that in run in a part 1 omnibus. Anyone does that. Its a good way to support the comic industry of course it depends how much you willing to spend depending on your living situation.