With everyone try to get you to use your card to pay it will happen a lot more. This is just the beginning. In theory it is a good convenient way to pay but when you are putting your data across the network you have no idea who is seeing it. Companies here, I wont say who, but openly say they want you to agree for them to use your data as they see fit. It is a recipe for disaster. When you use your card in the scanner you have no idea as to who is seeing that information.