I don't remember when it happened, but there came a time when the amount of effort to strip and disable stuff in Mac OS X became more of an effort than free *nixen. Sometime later, I made a small investment in swapping a desktop environment for a vanilla xmonad, and I couldn't be happier with the minimalism and lack of distractions.
A lot of time was spent fighting to get tap-to-drag without a release delay. Still nope.
Overall, it can be a pretty infuriating operating system as well.