I've seen these prices at many airports - I'd say every airport, IIRC. It's not new and it's not local to NY. It's not only in airports, but anywhere there is a captive audience, such as sporting events, museums, etc.
Can anyone name airports where these aren't standard prices?
When I was flying out of Narita Airport, the vending machines within were the exact same prices as those on any street corner in Japan: very reasonable.
Many/most of the restaurants are ones that you could also find locations for outside the airport, and their prices are the same as outside the airport.
Can anyone name airports where these aren't standard prices?