This is the way I see it:
You use a Mac if you can't operate a PC without breaking it, forking over cash to Geeksquad to help you understand what USB devices are, or just outright complaining that your PC doesn't work well because you downloaded some scam program to "speed up your PC" and you bought a piece of stuff from 1993.
You use a PC if you actually know how to work a computer without breaking it and are willing to open up your computer in order to fix a problem if necessary.