Oh make no mistake, these guys are pretty dedicated gamers.
Its just that most of them don't want to (or can't) run anything...
Couple that with the fact don't want to play anything but D&D (for RPGs), which isn't what is being offered by me. We still get together for poker, Munchkin, Robo-Rally, etc., but all the strictures imposed by the players means, well...we don't get to play.