The fun thing about both fly fishing and photography for me is that almost all your investment is up front. I like to know what I am paying for, I guess. With golf, you have greens fees and carts and (in my case) lots of lost balls. With skiing there are lift fees. Hunting has expensive license costs and shell costs–especially bird hunting.
With fly fishing it’s basically X for your gear then $20 a year to be allowed to fish a wide range of public water. This is one of the really lucky things about living in America. In Europe being a fly fisherman is about like being an upland hunter in the East here: you have to pay to play.
So while the sport may be expensive, hey, at least we don’t have to pay $400 a month in membership dues or what have you.
Zach