Not everyone can drive up to the corn spinner for wheeled retrieval.
Interesting as my guide and I in NE BC did not gut my elk and moose which resulted in a lot less on the horses to get back to camp. Seems the same would apply for a human pack out?
Riiiiiight, but that's a packout - ie, the thing(s) were quartered on the spot.
hanco is talking about getting them out whole, and, with guts. If you have to get them out whole (and can't get a quad, truck or horse to them), it's a lot easier to gut them (less weight) and drag them to where they can be loaded.