That all makes perfect sense. But airports are huge conglomerations of people experiencing “edge cases” in their lives. Most travelers in an airport are having somewhere between a fairly unusual and extremely unusual day just by virtue of being there. A certain percentage of them didn’t wake up knowing they were going to have to rush to get on a plane. Another portion of them are there on someone else’s nickel. Others are having the kind of once-in-a-lifetime experience where normal rules about frugality or practicality get tossed out the window. And so forth.
Basically, if the product or service you’re selling provokes the “who on earth would pay above-retail prices for that?!” response, then the airport is a pretty good place to be. Tons of people, captive audience, weird circumstances, high through-put.
