I just figured out this technique works for finishing up certain bounties. For example if you needed to complete killing lions in Nile River, its far smarter to kill 4 out of 5 lions and fail. You can keep doing this on the contract hunt until you have your bounty. Otherwise you have to keep playing other contract hunts…
Not sure. It doesn't take too long. Im almost done region 14 and have completed all regions and hidden regions. Im level 51 and have only spent 10 bucks on gold.