What some of you guys should try to do is repurpose an extra bedroom (or den or whatever) into your home theater room, or build one in your basement. The wife is much less likely to complain about a big subwoofer in the home theater room than she is about a big subwoofer in the living room. In my case, I have no TV at all in my living room, just a 2 channel stereo. The home theater is in the home theater room, and there, my wife does not mind speakers all over and big subwoofers. And she likes the great performance of the system, so it is a great thing for all concerned.
I realize, not everyone can do this, but I think many people can, and if you can, I think you should.