The only time I go to organic snoody grocery stores (World Market, Trader Joes, etc...) is when I want something different.
Basically, I go there when I want fine cheese/salami - and a nice beer that I haven't had yet to go with it.
Anything else, you're an idiot that likes paying $300 instead of $100. Want proof? Take a look around you the next time you're there. Emo's and hippies with tattoo's, nose rings, etc... all around you. At least with World Market, can't speak fully on Trader Joe's behalf.