here is some of the point we may need to think about the pricing of the food:
if our admission price was too low, then it would be hard to break even at the selling.
if our admission price was too high, maybe we would decrease the price of the food to maximize the visitors.
hiring external food sellers would be good to minimize the expenditure.
$5 and below is the best price for the food and drinks, cuz not everyone bring a lot of money to go there.
this could be a barrier that if we have to do it all ourselves.