Sparky, I would always feel a bit funny when I would visit my brother in Boston - oftentimes I would be the only sunnies-sporting person! He still wears them a fair amount, but not like I do.
I think part of it is that I really do have sensitive eyes, and am one of a percentage of people who sneeze when they look at the sun (or eat a strong mint!) But, that is really all just an excuse for insane spending on glasses!
I have an eye appointment this week, so it will be interesting if she suggests a prescription lens. I have sort of a random vision correction so haven't needed to wear them in the past.