[jemmons]

When you have a problem with a mac you can't fix it, 90% of the time the problems are hidden away and impossible to troubleshoot.

Demonstrably false. As far as systems and hardware are concerned, I worked as one of the guys who troubleshoots and repairs macs at a busy Apple store. Never once was I forced to say "I don't know. The problem is hidden and I can't troubleshoot it."

On the programming side, macs ship with dtrace. How much more troubleshooting power can a developer possibly ask for?

Just because you haven't bothered to learn enough about a system to troubleshoot it doesn't mean the problems are hidden. They're just hidden form you.