Well, I use WinCrap just because I'm an Engineer, and all engineering stuff runs on windows (good stuff: most of then will not ask for something bigger than Win98 )
Unix is really cool, but too complicated. Mac is awesome, but lacks software (still my main choice).
If the main reason for using WinCrap is running games, you have 3 nice alternatives:
- Wii
- Playstation 3 (well, PS2 still a good buy)
- X Box (It's better than Windows..)
If any flavour of Amiga OS get to see the light of the day as a commercial alternative, I will not think twice to change to it, because I think an OS should be fast, small and reliable and easy to use to run my software. Let Windows run in virtual machines to supply my needs for specific software.
I've used virtual PC in my Mac before it went dead, and it was good to run MPLab...