I visited Scotland with my wife about 3 years ago and saw that the whole kilt thing wasn't "just for Scots" since they had tartans for the kenichi clan, the trotski clan, the Bush clan etc. etc. etc. at most of the shops on the royal mile and elsewhere.

My wife being of Scottish descent, stated that she wouldn't mind seeing me in a kilt. We went to a few highland games, looked at kilts and such and I finally decided to give it a go. I also noticed that I felt rather stupid in pants when I was attending a scottish country dancing event since about 90% of the men were in kilts. Like Cessnatowser, I felt it to be more of a costume until I wore one during the 80-90 degree weather we had for Food&wine in Aspen. I, and a few women in skirts, were the only comfortable people at the event. I am still struggling a bit with the costume thing, but perhaps when we finally get down to denver....who knows?