I tried Mac for some time and LOVED LOVED the lack of crapware, but I found it overrated:

1. Blurry text :)

2. iLife apps are nicely approximated by Windows Live. Before I checked out Windows Live Movie Maker, I was very impressed with iMovie.

3. Lack of apps (e.g., wasn't able to find a decent fullscreen, borderless terminal emulator like the alt-enter mode of putty).

4. Didn't seem especially fast or anything compared to Windows (on a 4G machine).

5. Loved the unixyness of the OS. But it's subtly not Unix, which breaks some things. E.g., macports' GCC 4.5.1 + gdb wasn't stable compared to Apple's older versions of gcc. I now ssh into an Ubuntu box from Windows (putty + tmux + consolas FTW) for development.