The economics of diners in New York City

They are disappearing, though still with a cluster in Queens, here is one trouble they are having:

It costs as much as $4 million to open a new diner these days…compared to $500,000 for a higher-end restaurant, because diners require so much storage space for the inventory that their large menus require.

The full article, by Aaron Elstein, is here, it has numerous interesting bits.