> I can tap my card. I can tap my phone

It was convenient in Whole Foods. Prime discount and payment together. Remembering to keep the card on file updated was annoying, though.

If you have the whole foods app, you can already scan the QR code for prime and pay in one action.

And at CVS, I can use Google wallet to tap to use my loyalty card and pay. Amazon didn't have to invent a new thing.