I am not sure why do you think it is a single vendor. JFK has 50+ shops in just the "Grab and Go" category. [1] I've been to a plenty of airports that have a lo

I am not sure why do you think it is a single vendor. JFK has 50+ shops in just the "Grab and Go" category. [1] I've been to a plenty of airports that have a lot of different vendors of overpriced crappy food. It is not the competition. It is about extracting maximum of what the customer could pay. Same reason beer is expensive at the event venues. The second part of your comment explains it perfectly. [1] https://www.jfkairport.com/at-airport/shops-restaurants-and-services https://www.jfkairport.com/at-airport/shops-restaurants-and-...