25 years ago we were in New Orleans for clinic for my son. We stayed off of Bourbon st for the nights. One club had All you can eat shrimp dinner for $6 per person. A cart was brought to the table with a bucket of ice and pitchers of our drinks. Another cart was brought to the table with large bowls of slaw, baked beans, wedged lemons, Old Bay seasoning and cocktail sauce. Then a large pan was brought out with the shrimp. In with the shrimp were heads, shells, rocks, wood and seaweed. The shrimp were all different sizes.
We checked at a marina to bring some home. What we were served was first off the boat without culling, $2.10 per pound. Large/jumbo headless were $3.75 per pound.