Man caves that are sports themed are really popular because it is not unusual for a sports fan to want to have a space to call their own. In many cases these spaces will have a ton of banners, posters and other sports centered decorations as the design aesthetic of the room. It does not need to be sports themed, though. Many homeowners like to have a space geared for watching movies, while others like to have a space for playing poker. What is cool about a poker room is the fact that you do not need as much space.