We can go back and forth on this as much as any make or model of (boat|car|motorcycle|aircraft). Fact is Macs and PC share many of the same problems. The only Mac in our office had a system failure a little over a week ago and the user is still trying to get everything back to working order. I manage about 45 PCs and over the last 4 years, I have had only 2 Hard drives fail and rebuilt 1 other machine from scratch (knock wood)

How well you take care of your equiptment will determan how many problems you have with it.