It's only still running because of the complete twaddle perpetrated by people like you. "needs fixing every few months" Bollox. My macbook pro on the other hand has had - 3 new batteries, four power supplies, 2 hard disk drives, one new logic board, and cost a sodding fortune. My studio PC is 10 years old and has had sod all new parts in that time.
But guess what? thats just the luck of the draw, sod all to do with which one is best. You know what else? Macs ARE pc's now with a different operating system. You reckon your ancient non Intel Mac is still worth a few bob? Maybe - if you sell it to some geeky schoolteacher who doesn't know any better, but you'll have to con the sucker.
Wake up and smell the coffee, off the shelf PC laptops are cheap as chips, run for ever, using Win 7, Microsoft gives you a free virus stopper that updates itself in the background, and as a user of both OSX and Win 7 I'd struggle to separate them for fuctionality and stability.
I love my Mac Mini, I couldn't do without my ancient Pentium, it's horses for courses, so don't be spreading that mine is longer than yours krap because it shows you up as a non thinker.
The only excuse we have for making music in the first place is to make it differently..vis-a-vis our own difference (Glenn Gould)