That's certainly a comment or question I get frequently from visitors.
"Wow, you have a lot of subs here," or "Why so many subs?" From the LA Home Theater Group meets I sometimes host to individual guests, it's probably the most frequent point of discussion when they step into the family room. When they hear the system in action, there's no doubt in their minds that it works and works very well, but the question then mutates to something like, "Do I need to do this, too?"
The answer is "I don't know," since I have not seen their rooms and do not know what sound they're looking for. Nevertheless, I can give them some information that helps them to see where I'm going in my system and the process that they can emulate if they want. It seems to be a path that Roger Dressler was familiar with, since he liked the Performance Series sound in my space a lot. (see a few posts above this).
When I write "step into the family room," in our house it means take two steps down from the level of the kitchen and living room, which are two steps down from the dining room, with no interior walls separating them from each other. Here's a few shots of the empty space.