I would consider myself of paragon of geek culture in the sense that I've never found a subset of it I was not intensely interested in. I am a videogamer, owning many consoles and a nice self-built computer rig. I am a tabletop gamer, plyaing Warhammer in both the 40k and Fantasy flavors as well as many lesser known titles, dozens of tabletop roleplaying games, and tons of board/card games. I am a comic/anime/manga nerd, collecting series in a variety of formats. I am a movie-going nerd, going so far as to desire a career as a cinema critic.
I am also several other sorts of unlisted geek. I am nerdy about military history, civics, politics, comparative religion, weapons (firearms and ancient forms), and sports (especially gridiron.) Needless to say, I have far too many hobbies, not enough time for them all, and spend a fortune on crap I don't need. It's too bad I have such a strong desire to eat several times a day, that money could get me all sorts of far more interesting things!