system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do sushi "all you can eat" restaurants make a profit?

sushi is relatively expensive but all you can eat restaurants seem to make the same quality but with a set price of usually around $20-25. They even offer appetizers. How do they make money?
gpt
same as any other all you can eat.   make sure the material and labor cost of the dinner for one person is less than $20-$25.  

materials wise, all you can eat sushi places load up on rice and skimp on the meat.   and they offer free soda.    water+rice = full stomach.  

labor wise, they hire chinese and mexican cooks.   cheap labor.