I support users of both Mac and Windows (We have no Linux/Unix users outside the IT department).
Mac users are, indeed, quite arrogant about the alleged superiority of their Macs. Personally, I don't see it. But what do I know? I'm just an IT grunt.
Hey! I liked those Mac ads, and have collected them all. They are masterpieces. I actually thought that they were clever in making both characters likeable, and not being too hard on the poor PC guy.
The best ad was the one with the PC guy's angel and devil, and the one with PC in his disguise to attempt to avoid spyware. The most recent one with the counselor was a great parody of social work, and another under-the-radar promotion for Mac.
The Mac is just better. After all, what kind of a user interface has you turn off your computer by hitting the "Start" button?
But I am not arrogant about this! The way I figure it, the lower orders have a perfect right to by inferior products if they wish.
Not conceited. CONVINCED.