> RFID could fix that if we're really close to being able to scan a whole cart full of goods in one sweep (which the Amazon project seems to imply). But then yo

> RFID could fix that if we're really close to being able to scan a whole cart full of goods in one sweep (which the Amazon project seems to imply). But then you have an issue where every single vendor to your store needs to be inserting compatible tags into the packaging. That adds cost and logistics. I remember seeing this working when I was in university [0]. They just couldn't focus on supermarkets because the tags were too expensive (10-15 cents per tag). [0] http://www.vilant.com/ http://www.vilant.com/