> Personally I don't like having to show my ID when I walk into a store and then have a guy follow me around with a clipboard writing down everything I look at, touch.. I run out of such stores which is why I deleted my Amazon account.

This...is kinda like the next frontier, with in-store camera tracking and linking it to the customer at checkout (either through the loyalty card or credit card token if applicable). We're already partially in that future IMO.