Where is the $20.00 an oz. coming from? Crow's is $4.11 an oz. including shipping if you buy 16 oz. That's dirt cheap when you consider how long it lasts compared to nearly every other supplement. I don't have stock in Crow's either, but he provides good service and a person can talk directly to him. I like that. There isn't hardly any "customer service" where one can talk to anyone except a machine anymore!!!!!