I have a PS3 and a Wii, and i could buy a 360, but despite my dislike of Microsoft is not what it made me not to buy a 360 this gen...
The reason is simple: All the multiplatforms are on the PS3 also, and the majority of 360 console exclusives are going to PC, and since i have a gaming rig, i take advantage of that, leaving only with a small bunch of exclusives (and some of them are going to PC later) and for that i have an agreement with a friend, he borrows my PS3 and i borrow his 360 when we want to play the other one's exclusives...
So i don't need the 3 of them because of my gaming rig and my agreement with a friend...







