It’s the support angle, for me. I seriously don’t have to worry at all whether a piece of software supports Windows or not. And in my special case, my school doesn’t help with troubleshooting unless you’re using Windows or Mac because “of the many variations of Linux,” they said.
But that’s kinda typical of everything, how’s tech support going to help you troubleshoot something that has a million variables? I can fix things, but can the typical user? Definitely not.