I bought my PS3 in October 2010 and I don't regret it at all
龍が如く 3+4+5+Of the end, Journey Collector's Edition, Ico and Shadow of the Colossus Collection, Ni no Kuni, Sly Collection, Sly Cooper: Thieves in Time
The first 4 (Ryu ga Gotoku series) validate a purchase alone, but with exclusives like Ni no Kuni as well it's even better. That and I damn well HATE the 360 controller so I'd much rather play multi platform games (Catherine, Batman Arkham City) with a Dual Shock 3.