there's no end of women who'd happily sit there eating Doritos and killing some shit in Diablo 3 with you. They don't look like the super models...
Actually I know a few gaming girls who do. And I don't mean like "they have played the Sims on a Nintendo DS a few years ago". I'm talking about real full-time gamers, the whole nerd package included, girls you could probably pick up online. In fact at least one of them has done model work professionally, I think actually two of them.
I acknowledged as much in my post. One of the hottest girls I know is both a stripper and currently trying to figure out what her costume will be for this summer's Star Trek premiere.
I'm merely saying one can find a SO with similar interests pretty easily, if you're also demanding said SO be a supermodel and independently wealthy as well as have similar interests... well, that's gonna be rarer and that person may not be interested in you should they actually exist.
Finally, I'm still more likely to find a person deeply concerned about their personal appearance and health at the gym than at Comic Con. Obviously counter examples exist, but if you're seriously looking for a particular trait in someone, you might want to hang out where people who share that trait also like to hang out. This is also why I, being an atheist that really doesn't want to spend any time at all on religious concerns, don't tend to pick up chicks at church services.