I've noticed something pretty similar. I do appreciate video games and board games and speculative fiction and sushi and campy/punny humor and all the rest, but I've worked at companies where anyone who leaned more toward Agatha Christie and cake decorating (for example) might have felt pretty left out. The more pure-software a company is, the more everybody seems to assume that others share at least 70% of the standard obsessions - which now includes weight training, home brewing, and beard maintenance as well. It's pretty sad when people in advertising or even finance seem to have and accommodate more diverse interests. Wouldn't be surprised if undertakers do too, though I don't happen to know any personally. We are an extraordinarily fashion-driven folk, and that's not a good thing.