Okay, well, since we're all on a mini-console wars rant, I'll chip in.
For me, as I'm sure you know, I'm not too keen about the DS and Wii. However, the PS3 is $500+ for games that are mostly on the 360. As for the 360, that's slightly less expensive, but the best games there are on Windows, too. Seriously, why the heck should I buy any of those? Online play? Comps have that. Bioshock/The Orange Box/The Halo series, you say? Hmm, what's this in box with "PC" in the corner? It's like there's a natural selection trickle-down kind of thing going on here, where most of the AAA titles are also on sale at Staples. Yeah, I know there's some advantages to using a controller--and, heck, I've never even earnestly played any computer game beyond the complexity of RollerCoaster Tycoon--but that just doesn't seem worth the extra 300-something bucks.