[cstreit]

A lot of places are investing in electronic shelf labels. They can all be updated instantly via wifi from the central HQ.

Groceries lose a lot of money hiring people to switch tags and on lost/under sales due to mis-pricing.

That said - the side benefit to the grocery is they will likely want you to use their app, and so they will know EXACTLY what you're shopping for now, whether you buy it or not.