1) How dare you? and 2) How DARE you?!?
I'd suspect a substantial portion of the fanbase actually lives OUTSIDE their parents' house and actually have $$ to spend or are willing to save for a while for this sort of thing.
I loved SW as a kid. DD10 loves it, as do many of her female friends. I don't know what the breakdown of the fanbase is, but I doubt it's as skewed these days as some might think. Also, don't underestimate the power of the SW Geek to drag his/her significant other along for this sort of thing...