I always thought of duck/geese hunting as the most expensive? Boat/blind, decoys, waders, and a 12-10 ga. that will run 500.00 easy with some of the nicer semi-autos running well over 1000.00.
True, top end bows will run 1000.00, but there are several decent new bows that a beginner could use that run under 300.00 (with a set up package included). Cabela's has several in that price range.
I guess any sport can get as expensive as you let it get.