This is a simple case of supply and demand ecconomics. Only two ways to change a price of something. Increase the supply (which in this case probably wont happen) or decrease the demand. The price of anything is determined by what someone is willing to pay for it. The price of a lease will not exceed the cost of owning that land. Otherwise people would buylandto hunt on. Guided hunt prices will level out at a place where there are more deer available to shoot than people willing to pay to do so. The value of a deer is determined by the hunter. Todays hunterhas determined the value by the size of the antlers.
The only way I can see to change the cost of hunting is to place less value on that bone riding the top of abucks head.Good luck!!