Some of these might be overstock items, although that is pretty unlikely with the Absolute GL. 

One possibility is that the books don't exist.  Make sure you get the seller to send with tracking (or insurance).  This way you aren't in the position of trying to convince eBay that a package did not arrive but the seller says that they in fact sent it. 

Reading now:  White Tiger mini-series; X-Statix Omni
 
Awesome new acquisition:  X-Statix Omnibus (still waiting for my copy of Marvel Firsts 1960's to arrive, I'm sure that will qualify)
 
...with great power comes -- great responsibility!