walmart is trying to take over the local grocery business here, so we've got big mega walmarts and small local grocery walmarts in the region. one of the megas and three or four i can't remember of the groceries in my town specifically. the mega has it figured out. like twelve self scans that can be monitored by one or two persons, all of them have hand scanners, and a few lanes with cashiers manned for the folk who are desperate for human interaction or just don't use self checkouts for reasons. the grocery, they have like three self checkouts that are not quite so good and a bunch of cashiers. maybe they are still afraid of the banana trick idunno.