Some countries require pricing to be visible. I would assume, just like online, they will use algorithms and ai to figure out what price point gives the most profit. Its only trouble to set up. The corporate world doesn’t look at trouble. They look at cost. If the return investment is positive, they do it. If it’s high, they do it as a priority.

Not all retail is online. Much is but not all. Groceries is one that is often better in person for that evenings meal on the way home from work. It’s led to the rise of metro style supermarkets near transport hubs.