I would agree that a system should match the room it is in, after all, why spend all the money and not get the most out of it.
However, sometimes we move to a new house or for some reason or another move our system to a room that is less then ideal and hope that things will improve. One doesn't always sell a whole system just because one needs to move it to a less the ideal room.
I like the idea of listening in the dark since there are no distractions, so why care about what the room looks like.
By the way, have any of you guys ever seen your lady in a cluttered garage and all you noticed in that room was her???? Even over the wondeful system that lives in that room ;)