[jhermsmeyer]

Agreed. There are low tech ways to achieve a similar result. But operators, servers and managers absolutely loathe anything that changes their steps of service.

The winning solution will be completely transparent to their current workflow, and will also be seamless to the customer. Until this happens I don't think we'll see widespread adoption of new pricing strategies.

For instance, a pricing increase when many/most seats are filled is probably best way to discriminate in a restaurant. Sophisticated pricing strategies like those could become commonplace with digital menus, and the staff wouldn't have to think about it - but they would see the effect in their tip total.