The thing about console gaming for me isn't related to overall consoles and sales, but the rush out for the latest thing. If the number of titles available on the PS3 was limited, then there would be a decent chance that I would shell out $60 for the latest game. It isn't, though, and there are plenty of 1-2 yr old titles available new for $20, and lots, even fairly recent ones, available used for under $15.
Part of it is I'm cheap, and part is that I'm not spending 80 hrs a week playing games so I can't exactly clear 1-10 games/week, but there are way more titles available right now than I will ever be able to play. Being a year behind the curve doesn't really phase me.