I'd argue that's a lag in price, though. Even if Target doesn't lower their prices, as self-checkouts get more and more ubiquitous (I mean, they kind of have, but they aren't necessarily the standard), if a Target competitor wants to lower their prices to steal customers it's now easier to do so because they're making more money as well. The lack of benefit to the consumer is due to the lack of competition, but with adequate competition this technology would definitely bring down prices.