>> physical menus are hard to update

> How often does a restaurant update a menu? Those that need to update frequently already solved that by having a chalk board.

One advantage of a digital ordering system: it can track inventory and mark a dish as unavailable after N have been ordered.

Some restaurants might have menu updates in the middle of service quite frequently, if they have a daily special with a fixed quantity. Most restaurants probably have an unavailable dish occasionally. Or if a beverage choice becomes unavailable, or a new beer is put on tap.

I don’t think ease of menu updates would be the deciding factor for any restaurant, I think it’s more likely to be based on the experience they want their customers to have