The situation Peter describes is one big reason for the popularity of soundbars, namely once you hear how much a nice setup can improve the overall enjoyment of all content, but especially higher quality content it does make one want that same experience in every room of the house. Personally I feel "cheated" when watching a BluRay with only the TV's default two channel very low fidelity built--in speakers. The physical layout of my master bedroom is such that 7.1 sound with in-wall speakers is actually easier to install than in the other rooms of my home.

That said the "benefits" of a nice "zero setup" soundbar also make it easy to gift to my mom and (make my MIL an "outlaw" too) so that they and the kids can enjoy the enhanced experience of home theater with no fears of "pushing the wrong button".