Despite the fact that Denver was part of the old Midwest rotation zone, my opinion that the recent changes to Worldcon site selection have had the effect of screwing over the Midwest stands intact. Denver's a damned sight closer to the West Coast than to most of the rest of the Midwest.
But we'll see what happens with the 2009 vote. If Montreal wins that one over Kansas City, then it's going to be devolving into a pretty sad situation.
Correction: Denver is in the old Western zone. So a city in the Western zone voted a Worldcon to another city in the Western zone. How nice.