I'm way behind on video games. I know what systems are out there but I don't know all the little details...anyway, I was in an EBgames store yesterday and a woman was going to sell her original PS2, the big black one, for store credit. The clerk told her she'd only get $30 because it was one of the very early models (with a firewire port) and that they needed to send it in for an upgrade. He said it wouldn't play many of the new games--gold discs or blue discs or something. Anyway, is this true? Can older PS2s play the new games or do they need an upgrade? I'm asking because I was thinking of getting an old PS2 for my son, if I can find one really cheap.