I have a PS3 and Wii because I've always had Sony and Nintendo Consoles all my life and love all the franchises each console had to offer and I'll continue to support Sony and Nintendo and buy their games.
I don't have a X360 for the following reasons (not in any particular order):
1) Games - If I owned a X360 right now, the only games I'd have are Halo 3, Halo: ODST and Gears of War 1 & 2. 4 Games... Why? Mass Effect series? Left 4 Dead series? Already got them on PC. Nor am I interested in the other 360 exclusive series which includes Forza, Fable, Crackdown, etc. Upcoming games? Alan Wake? Don't give a damn about it. Splinter Cell? Don't give a damn either. Even if I did care, PC has me covered. Natal? Nope, not interested. The only upcoming game I'd care about is Halo Reach.
2) Too much other things to buy - Gotta buy a wifi adaptor. Gotta pay for Xbox Live. Gotta pay for another controller. Gotta buy a bigger harddrive. OMFG...
So in the end, there's really no need for me to get a 360 right now nor am I planning to in the near future either.
I'm happy with what my PS3, Wii, DS, PSP and PC has to offer and it shall be like that for a long long time.
