I can't speak for everyone but like I bought A500 games for my much more powerful A1200, I am buying PS2 games for my PS3 as well. So far I've bought Ape Escape 2 & 3, Jak3, God of War 1 & 2 and I may soon also download PS1 games like Crash Bandicoot when available from the European playstation store. The PSN is an additional option available to developers to cheaply distribute their (i.e. lower budget) games.