Not at all. There's a lot less distraction while listening to music with all the gear out of sight. (There is a universal player in the room for playing single discs)
And with a pull down screen and overhead projector, it works for movies too. There's nothing more distracting while watching a movie than a bunch of blinking colored lights next to the screen.
And people that are interested in the gear can easily open the door and enter the room to check it out.
And the last benefit is that the door is a secret door that cannot be seen, so if someone were to break into my house, the only thing they could steal would be the universal player.