It's true that Macs crash a lot less often than PCs, but it's not true that they never crash.
It's very true that Macs last longer than PCs. My main computer is a nearly-4-year-old iMac (G5, the older kind with the thicker frame & no built-in "iSight" video camera). One doesn't generally see PCs that last longer than 2 years, IME. So, even if a Mac costs twice as much, consider that they are really about the same price overall.
I disagree that PCs are more intuitive. That might be true if you are used to PCs. Macs are generally regarded as being easier to learn. I used PCs for many years before switching to Mac. It took me a good 30 minutes to become proficient on OSX.
Anyway, if you're looking to record, consider that pretty much all studios & music schools use Macs. There's a good reason for this.
Oh, by the way, Garageband is decent, but it's not the same as Cubase or Sonar (or ProTools) and wasn't intended to replace them.
Hope this helps,
Dave