Like most people in IT I spend a certain part of the year helping out those less fortunate than myself. Namely all the friends, friends of the wife, some bloke I met in the pub and the school in getting their computers to work. Most recently I fixed a couple of laptops and an internet connection, one was on XP the other on Vista, the wife asked to have her (XP) PC "look like" her husbands as she like the look of the interface. When I said it was a different operating system she said "Isn't it Windows then?"
The point is of course that it is Windows and the difference between XP and Vista for most users does just come down to the pretty window manager... until stuff doesn't work. The XP box was back-online in under 10 minutes, the Vista box took me longer due to the wonderful UAC and a driver problem.
Most of the time however I feel like a Mac salesman, I turn up with my Mac (the trouble shooting box) run all the tests and have them thinking "ooooh that must be hard to use because its so powerful and techy" then let them play around with it for a few minutes. I'd say that around 50% of those people I've supported this year who are looking at replacements are now looking at a Mac.
Now a Slashdot poll on what is the correct payment for these unofficial support calls (often at a party or other social function) would be good. Right now I'm getting around two bottles of wine and a decent meal out of it.