By and large, that's an accurate assessment, at least compared to a Windows box. Like many of you, I serve as the de-facto tech support guy for friends and family. I've even built Windows boxes for business and personal use for friends. Right now of the folks I know, the Windows/Mac division (in terms of number of machines) is just about equal.
One guess which side is responsible for 80+% of my support load.
Windows 7 is dramatically improved, but they've still got a ways to go. I dream of the day that Microsoft pounds a stake through the heart of the Registry. I hate that thing.
"By a large" I notice that most of the time it's not Windows. It's the person using it. Education is the key. Then again I don't mind, because it's Average Joe that keeps me paid and happy. The reason Macs (Which are PC's BTW) "Just work" is because they are so proprietary. For your average idiot this is okay, but comes at a price. You cannot customize an OSX based PC like you can a Windows based PC. Case in point every single person I know IRL that has a Mac also has a computer running Windows, or Workstation Fusion with a Windows VM.