If I switched all the computers in the house to Linux, my wife would kill me. There are quite a few programs she uses that only work in Windows, and there are no equivalents in Linux. And trying to get them working in Wine has been a pain in the ass, and I think completely undoable at the moment. They are special programs for her work.
Also, alot of the games I play just don't seem to work on Linux either. So I use Linux for my day to day stuff, but use Windows for my gaming.
But I do have a bit of a guilty conscience about this...
I have been finding myself using Windows more often lately. I get bored, and play some games on Windows, and when I'm done, I get lazy, and just open a browser on Windows and dink around for hours. So for the last 2 weeks or so haven't run linux at all.
I feel so guilty it's pathetic. Haha.