That is pretty much the average going rate for a full day saltwater charter these days all along the Gulf and Southeast Atlantic coasts. The range is $400-600, but about 95% fall within $450-550. That will cover 2-3 anglers, ice, water, bait, all tackle, licenses (in most cases), and 8 hours on the water. Some charters offer "value added" items such as lunch, snacks, 8 fishing hours instead of counting transit time, etc. Some even offer "no catch = no pay" guarantees. But $500 is going to change hands - one way or another.