I'll bite the troll as well :
I've been happily running linux as my main OS at home since 1996.
The last time I dual booted with win2k was in, well, 2000. Ever since then I've been solely using Debian, and it's been filling all my needs : web, programming, word processing, scientific computing, and so on (though I reckon I don't play games).
Why would I trade reliability for something else ?