I prefer the inner workings of MacOS also, but buying an Apple computer for the purpose of tinkering with it is like buying a car with the hood riveted shut.
I bit the bullet and bought a Mac Mini 8 or 9 years ago so I could use a particular writing application that wasn't available for Windows at the time, and shortly after that I seriously considered developing iPhone apps. But if not for those two things I wouldn't have bothered. If I need a bulletproof OS there are some very good Linux distributions. I'm currently using CentOS and it's been solid as a rock.