Many sports bars have cover charge when they are showing a boxing or a UFC pay per view event, to help defray to costs of ordering the pay-per-view material.
In economics, the term "price discrimination" refers to charging different prices to different customers, based on the anticipated elasticity of demand of different customers.
Cover charge is waived at some clubs for early arrivals (before 11 p.m.
or midnight), for people who order food, or, if the club is in a hotel, for hotel guests.
taken to the table, it is payable whether or not they are eaten.