Madison has hockey to contend with, which makes it difficult. I don't know much about all of the cities, but Des Moines is a fit. They host the Drake Relays which is one of the largest track meets in the nation. They are prepared and equipped for events like this. People from Des Moines, Iowa State and Iowa would all buy tickets.

Boise on the other hand - why? They get the tourney almost every other year and you always see tons of empty seats.