I'd note that there has been some movement in certain communities to regulate and limit home size. Consider this article on the "swelling McMansion backlash." Honesty, as judgmental as you may think it is, I'm not alone in my concern over rising home sizes. Nor am I alone in thinking that our seemingly personal decisions about how and where to live do impact our communities as a whole. From an NPR story on the average size of American homes, I found this quote from a Cornell professor of management and economics to be point: "We know there are all sorts of situations where individual choices that are perfectly rational add up to a total outcome that none of us likes very much. [Large homes] is one of those."

