The way stores used to work, when goods were relatively more expensive than labor, would be that you would go up to the store counter and ask for what you wante

The way stores used to work, when goods were relatively more expensive than labor, would be that you would go up to the store counter and ask for what you wanted and the clerk would fetch it from in back rather than the customer having to find goods on the shelves. With cheap robots you could go back to that model.