There was just an article in this months American Hunter magazine about the difference in revenues that are generated by resident versus non resident hunters for a few states out west.I believe that the non resident license sales in Montana generated about three times the revenue as the resident license sales for their game department,with about one tenth the drain on the states natural resources.Politically it is much easier for the states to increase the tag prices for the non residents versus the residents,there is no voter back lash.So from a game department point of view it is not likely that those practices will stop any time soon.
I can't speak for Montana,I have never hunted there (non resident tags are to expensive,unless you draw)but for the little town in Idaho that I huntfrom,if not for hunting and snowmobiling many of the locals would not survive there.