Why loyalty cards suck

Stop N Shop is one of the cards I do carry because the gas points does help but MAINLY because in our area they have these self scanners you can use to check yourself out as you shop - and then you scan a code at the register, swipe your card across the scanner, and boom it retrieves your order. Pay, walk out. If you do it right, you can bag as you go and just be out of there. I LOVE this feature. Love it. Especially great when shopping with a kid who thinks the scanner is the coolest toy ever or when the store is crazy busy and the lines are long at the register. For some reason only a certain percentage of people have bothered to learn to use the thing and it is the strangest thing to see all the long lines some days that anyone can hop with the scanner dealybob.