I'll buy that. Done it myself a few times.
And therein lies the conundrum. Yes, we can gloat a little when someone ignores our advice and then comes running back to us to help fix their PC; yes, we often view ourselves as superior because of that. But the fact of the matter is, it's not an exclusionary club. Anybody can buy a Mac, and become an elitist too!
Just to play the devil's advocate, what happens if they follow your advice ad come running back for help with their Mac? Then does someone who recommended that they get a PC get to gloat? I would say that analogy is a double-edged sword to use in favor of either side.