Cost of food at home <<<< outside. You pay for convenience more than anything else at a movie theater.
Besides, I have many other issues with cinema popcorn specifically. I don't care it's terribly overpriced, but basically most of these venues don't offer any healthy snacks AND you are forbidden to bring your own, so you either eat shit or just sit there hearing all others eat. Fine for an adult, but when you have kids, this becomes really frustrating.
The restaurants costs haven't changed significantly by just switching to takeaway. Their staff still want the same salary and they still have to by rent on their restaurant premise even if no one is sitting there.
I really don't know what you were expecting. They're still preparing the entire meal for you.
Was a comment deleted or something? The person you'd responded to didn't mention "ambience etc". They specifically said "You pay for convenience more than anything else at a movie theater." Unless I'm mistaken, the first person to mention ambience in this thread was you- what argument were you objecting to?