I recently counted my books and found that I had 62 print books for D&D 3.0/3.5E plus another 36 books in PDF form. In addition to that I have a couple of year’s worth of issues of both Dungeon & Dragon Magazines (almost all 3.0E onwards) as well as the Dragon Magazine Archive.
I have Dragon magazine back to issue #44 or so (along with selected Dungeon, Pyramid, Adventurer' Club, Rifter and other mags), and 93 RPGs (about 50 distinct systems). Oh yeah...I also have boardgames, some minis games, and a host of CCGs, including 2 trunks of M:TG.
I don't have too many books...I just don't have enough space.