Reading these answers, I'm left thinking...why don't we have nicer riverfront towns? With great downtown and riverfront entertainment options?
We can do better...
I remember a geography class, and its the urban decay, and sprawl. The downtowns in those river towns are awesome. Problem is, back in the late 1890s and into the 60s, people built homes around those economic areas. Now they are crap. The homes around a downtown sometimes go with it.