Linux would have to manifest a physical fist that punched me in the face every so often in order for me to quit using it. (I'm just shy of 20 years since abandoning Windows)
My reasons:
- So far there hasn't been something I've wanted to do on Linux that wasn't doable - and most of the time (especially these days) it's easier.
- Everything MS has done in the consumer space post Win-2K
- Everything Apple has done.