I don't, but my bedroom is the place I live and where all my stuff is; HD tv, 360, computer, laptop, all my games and all my books.
I won't call it a lair though, a lair sounds like a messy, dark and dirty place. My room is clean, fresh and just a wee bit messy (you know, 'lived in' messy, a magazine here, a few things on my desk, things like that). No dirty clothes, no dustbunnies under the bed, properly ventilated (usually, I just have 1 window), etc etc.
The only real downside of my room, is the fact that it lacks a bit of personality. I could use some posters, figurines, just random nerd crap. But I love my room, it's just that my room is not in the correct house in the correct country.