The Xbox 360 isn't even on my radar. The Xbox was never even considered since nearly every game (not every game, but pretty darn close) that I remotely wanted to play ended up on the PC as well. (I don't understand the division between PC gamers and console gamers...well, the kind of games I play on my PC are the kind of games you play on consoles anyway.) Even Microsoft's own Halo 2, if I ever want to play it, is coming to Windows Vista. The Xbox 360 is shaping up to be the same. Sure, there's Dead Rising and maybe the Rare(ware) games but it's still mostly stuff I'd prefer to get on the PC.
I was ALMOST considering the PS3 over a year ago, but the constant shooting in the foot that Sony is doing, and the crazy price, is making that another off-the-radar thing. I'd play it, but I'm not sure I'd ever own one. I can actually afford it, but I don't want to throw money at things I don't want to support.
That being said, I support what the Wii is doing, so $250 (well, $280 Canadian) is worth it. Sure, everyone would rather pay less but $280 isn't unreasonable IMO.