They're taking credit and debit cards, so they have to pay some amount of transaction fees as a built-in part of that. I see nothing where this is any more ben

They're taking credit and debit cards, so they have to pay some amount of transaction fees as a built-in part of that. I see nothing where this is any more beneficial to the consumer other than 'it's Walmart' vs. Apple Pay/Android Pay/Samsung Pay/etc.