I play Warhammer 40K. I used to play for the local collage. I play Imperial Guard and Dark Angles. I also have some Tau models and some Dark Eldar. I have enjoyed it over the years and I have owned some very good models. The down side is the expense, but if you are canny you can kit yourself out with an army big enough to play most games on ebay for about £150. It can be a dangerous obsession as many armies stay in the boxes, unplayed with.