WOW 42!? Nice. I currently have 26 PS3 games (not counting PSN games). At the end of my PS2 generation I owned 43 but that was over 6 years of collecting.
My buying has definitely slowed down with Gamefly rentals, but at the rate I'm going I might top 43. I still like to own all the AAA games that have lots of replay value and support the companies that really deserve it.