EBay can work out very well for getting OOP items. Of course depending on what it is you are looking for, you can pay through the nose but if you are patient you can get deals as time goes on.

Last week I got Wolverine: Enemy of the State OHC brand new sealed for $15 plus shipping.

Early this afternoon I got Daredevil Omnibus Vol 1 (Brubaker) also new for $27.99 ($43 with shipping) when most have been selling for $80 - $100. I gave up on Amazon trying to send me that title as the last of the glitch titles.

Next up to keep trying for (the big guns) are both Daredevils by Miller, Daredevil Benids Vol 1, and Fantastic Four Vol 2 omniboo's and Avengers Assemble  OHC Vol 2