Fun fact: I ran into an older man at a Perl conference back in 2013 or so that told me about how the Kroger rewards cards, once scanned at the terminal, talked to a Perl CGI powered back end that was hacked together by him in the early 2000's.

But on another note, I can't help but wonder how theft of merchandise will be handled. On one hand, you won't have to pay cashiers so you can "afford" to have more stuff stolen. But on the other hand, I know people that just love to get away with what ever they can. Case in point is this old man friend of my grandfathers that used to tag along every time we went out to eat. He would always order a glass of water for his drink (free). And then go over to the fountain drinks and dump it out and fill it back up with Sprite. He thought he was real slick. He used to be a crew chief on C130 gunships. But now he ain't around no more.