I love the X-Box 360. I really do. Playing games like Dead Rising, Halo, and Crackdown just make my day so much better all the time, but then I come to work and see what happens. On average, I see about 10 of these systems returned a day at my job, and its always the same customers who come back because theirs burned out.
While my Playstation is going on five years, I know people who have had three of these systems in a six month period and finally gave up to buy the PS3.
The games are entertaining, its the most popular console right now and its not the most expensive anymore, but we still the issue of them overheating.
I wouldn't recommend buying an X-Box 360 unless you honestly just don't care about having to replace it when it dies. I don't have the patience to put up with the trips to the store every time this happens, but maybe you do.