Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

In a competitive market, why is movie theater popcorn expensive?
With all due respect to economics everywhere and the armchair economist. I think they overlook one very basic fact. The alternative to buying popcorn  at the cinema is buying it cheaper at the store, or making your own and bringing it to the cinema. Cinemagoing is something you tend to do with a date (and sometimes your friends) and who wants to look cheap to their date (and perhaps their spouse/friends) bringing popcorn to the cinema?  This "cheapo-gentlemens" effect together with convenience is probably the reason why popcorn can remain so expensive at cinemas.