I wasn't going to bring up Mac, but the conversation ended up there. So I will. :)
I've had very much the opposite experience to strollin. I work 10-12 hours a day on computers. Most of my work is heavy stuff like AutoCad, Photoshop and Video editing. I can't tell you how many times I was frustrated by hardware on the PC side.
We went on a long trip (link in my sig) a little over a year ago. On the drive home, I told my wife that there was no way I would do all that video editing while cursing the PC (which was suppose to be matched to the task). The videos ended up being 8+ hours finished.
When we got home, I went right to the store and bought my first Mac. It was painful on the wallet, and I wasn't sure if it was smoke and mirrors or not. The truth is, I always hated my friends being fanboys of Apple products. In the last year, I have spent roughly 400 hours on ours editing video and the family has spent another many hundred hours browsing, etc. Our Mac has done EVERYTHING we've asked it to, the first time we hit the button, EVERY TIME. It has not hung up even once! If it blew up tomorrow, I'd go that evening and buy another.
I can see that it might be more limited in options or config, but I prefer no headaches to options.
BTW, the learning curve wasn't but a week or two for me.