A big flaw with the whole "new urbanism" model is that the developments are generally completely isolated from other places, except by car. You might be able to walk around town, but you have to get on the highway to go anywhere else. Walkable neighborhoods have their advantages, but one advantage of a "real" city is that you can walk from neighborhood to neighborhood as well.
It appears all of the DNC conventiongoers enjoyed everything our finest hotel bars had to offer, so that's good.