I should hope that the focus does not remain on the urban centres. One example that comes to mind is a small town in Oregon called Hood River, next to the Columbia River, where they decided that they would retrofit nearly all of their homes with insulation and weather stripping. In a small town—I believe this one has 10,000 people—you can undertake programs that you could never succeed with in a large city. In fact, you have some special tools in a small town that you might not have in a city. In the truly rural areas, there may be some other special cases, but to be honest I don't know that much about it.
On April 21st, 2009. See this statement in context.