Asexuality

Hmm... Interesting question. I'm an introvert asexual as well and selling me sex doesn't work. Selling me other things can if you can reach me, but I don't watch TV anymore except online or on DVD and tend to switch the channel when ads air on the radio. As such, advertisers aren't really reaching me anyway. If anything, the few that do reach me often piss me off more than anything because I've been trained in how to see how they're selling me something and how objectifying they can be in that effort (advertising aimed at women versus advertising by women fascinates me).

I'm also gonna agree with charamei: I think the introversion plays a large part as well. When I was in my late teens, my response (mostly internalized and acted out) to being told I could be beautiful if I did this, this, and that was "Hell with that, I want to be comfortable and sleep in and who cares what anyone else thinks as long as I'm happy?" And I was happy like that because I didn't care what people thought because I had come to the conclusion that if they didn't like me for who I was, then they weren't worth my time. I still stick to that, although I do make some effort with what people think now because my job requires it to a degree, more's the pity. ;D