"There's a reason that most (90 per cent!) people happily prefer Windows to Mac OS X, and buy Windows machines. They're comfortable with the experience."
What I've actually heard from some people (buying blank PCs and OEM Windows CD to install on it as opposed to buying it without CD) was they liked Windows but then would go right on to "Don't you hate it when your computer " (litany of problems that Windows gets but OSX and Linux distros don't.. viruses, spyware, slowdowns as more and more programs are installed or whatever, etc...one dude even complained about how much he "had" to run defrag (he was running it like daily to get that 99% defraged back up to 100. Yeah.)) I will add here, I didn't have these problems when I've used Windows, I do think most of these guys' problems is shall we say operator error. But still, I would say it's more familiarity (afraid anything else will be too radically different) than comfort, the experience they described sounded downright harrowing to me.