Free: Contests & Raffles.
Sheep. I can get an otc moose tag in several places and I have a tribal issued goat tag (for turning in poachers/vandals on rez land) that I am saving but sheep seems to be getting harder to come by.
I chose sheep. And here is why: I could save some money for a few years and go on a moose hunt. But if I wanted to kill a desert, rocky, or stone sheep I would have to save for 15 or 20 years before I could afford it.