Every owner knows the small dread of a printed menu: the moment it is printed, it is already slightly wrong. Something sold out at nine. A supplier raised a price. Someone wants a special added tomorrow.
Paper punishes change
With print, each of those is a reprint, a cost and a delay, so most owners just do not bother. The menu drifts out of date, the "sorry, we are out of that" conversations pile up, and the specials board becomes the real menu.
Live menus reward it
When the menu lives behind a QR code, a change is a few taps on your phone and it is on every table in seconds. The code on the table never changes, only what it shows does. Sold out at nine? Grey it out at nine. New special? It is live before the first booking arrives.
The result is a menu that is always true, which is the whole point of a menu.