IDK about you, but I'm pretty vain. I'm obsessed with hair, makeup, body hygiene, clothes, etc. I actually consider it a hobby. Most of my money goes towards clothes, perfume, or M.A.C.; actually, I think that's all I spend my money on... cough.
I think it depends on the person. Everyone does not like the same things. Like, I can spot Louboutin shoes or anything by Alexander McQueen, when the average person cannot. I choose to spend my time obsessing about these things and I am guilty of following several fashion blogs. All because I'm a NT doesn't mean I only care about science or whatever. Science is OK, but I prefer the fashion world.