Crawfish boil help

My guests wanted it, it was only 2 lbs. It didn't effect the crawfish at all, and I thought it was pretty good. Granted I only tried one piece. I have a theory when I'm doing a boil up here. I throw in all the groceries. These yankees eat tons of the potatoes, corn, garlic and sausage like it's the main meal. I literally had people who ate about 1lb of crawfish. Let them fill up on that stuff, I'll stick to the crawfish. And there was no leftovers. I have a rule here at my home, No crawfish/shrimp left behind.