Yeah... About four.
This is probably going to soud like the most ridiculously fanboi thing I've ever said... But I actually don't see why people buy PS3's when they could get a 360 for less money. (Actually, people aren't buying PS3's, last month the fucking PS2 outsold the PS3 by 45,000 units
) Xbox Live is about sixteen-hyperbolillian times better than any console online system out there, and the 360 has a plethora of genuinely fantastic games whereas the PS3 has.... erm.... Killzone 2 and MGS4... Yeah that's about it.