I'd probably mess it up somehow, honestly. Ever tried switching OS mid-project?

linux is awesome until you need adobe some stuff

In some cases, a project is going to require Windows. I had a client last fall that has their custom business app built on Access, and they needed my help with the back-end. Also, I do over-the-phone tech support for the general public (amongst other things), and some don't want to ditch Windows ye...