I always laugh my saltwater license is less then $30 with all the tags possible but a fresh water with steelhead tag is almost $50 and you can spend a lot more to fish some restricted waters.
Then I fish 3-5 days in the fresh and keep nothing vs. 20-30 days on the salt keeping a years supply of fish, prawns and crabs including enough to put on some big seafood feasts during the summer.