Was able to get a used G&W Gallery 4 on ebay for about 15 dollars including shipping a couple of weeks ago.
It's electronic old-school/new-school crack, I tell you. Old and new G&W games are on here, and they're both fun. I think there's decent replay value and challenge, because in order to open new games, you have to earn stars (non-accumulative, btw) by getting high scores above 100 points.
My favorite new school game is Chef; a little bit of Iron Chef and Emeril mixed in with Yoshi ;). The hardest game right now is the old-school Chef; it's Ed Sullivan-plate spinning craziness at its best.
released NBA 2K8 (2K Sports) NBA Live 08 (EA) NBA '08 (Sony) The reviews generally seem to have them ranked in that order, with 2K being the best. in the PS Store Game: Go! Sports Ski ($3) Demos: The Simpsons Bladestorm: