From the Detroit free press
"For the two Jehovah’s Witnesses conventions, each brought about 45,000 people to Detroit, the bureau got $300,000 in state money to help with the cost of hosting the groups."
http://www.freep.com/article/20140827/COL06/308270055/tom-walsh-Michigan-Economic-Development
So if the Economic Development Corp. received $300,000 from the state to "help" with the cost, how much were they actually paid?
More and more it becomes quite evident that the real reason the dibs hold conventions is $$$$$.