Personally I have no interest in the PS3. Bought a Wii a while back, bought a 360 a month or so ago, came to student loan time and I...bought a laptop.
Problem is that any of the games that interest me are on either Wii or 360, hence the reason I got them. Not one of the exclusive games on PS3 interests me, at least til MGS4 comes out.
As a general rule I don't buy a console until it has at least 5 games I like that I can't get elsewhere, and the PS3 doesn't look like changing that any time soon. When it does, cool, I'll happily purchase one, but I can't see it until next year at the earliest.
TBH my 360 takes most of my attention, and with GTA that isn't stopping.
But for now, I have no interest in the PS3.