I'm not really surprised - the PS2 has a huge software library, plus most owners have several peripherals that still prove useful. This weekend I played some Singstar and Guitar Hero III with friends, and I'd be more likely to buy more PS2 games that use the guitar and mikes, than to buy new peripherals (extra functionality and downloadable content notwithstanding).
In fact the Singstar
game we played was a brand-new copy of the recently-released Singstar ABBA, and everyone loved it.
You can pick up used PS2 games for a pittance. I remember chatting to a store assistant in a games store, saying he was still always seeing parents come in and picking up PS2s with a bunch of games for the holidays. Console and a load of games well
under 100 UK pounds, for which you can't really get another console (perhaps a DS or PSP with one game).
They're still releasing new games for the PS2, a pretty clear indication that it's still alive. No-one sane would advocate playing a cut-down and graphically poor PS2 Force Unleashed
, but it's clearly still economically viable to release it. Though some would say the same for the Wii version
. And, I don't want to arouse any fanboy ire, but I have a sneaking suspicion that similarities in graphical capabilities between the Wii and PS2 might help the economics of releasing a PS2 port... Anyway, there are a ton of PS2 games that are well worth playing - a brilliant last-generation game beats a mediocre current-gen one.
Everyone commenting on gaming stories should disclose their console preferences to discourage fanboy-ism. My TV is currently hooked up to a Wii, a PS2 and a Sega Master System.