At 3 cents per tag, this is getting to a place that is cost-possible for manufacturers.
I remember a commercial a few years back. A guy in a trenchcoat, trying hard to look suspicious, is walking around a grocery store. He keeps picking up items and 'hiding' them in his trenchcoat, all the while being followed by a stern looking security gaurd. After getting a punch of items, he walks through some blue-looking force field. The security gaurd stops hip.....to give him the receipt he forgot.
The blue field was a scan of some kind. It picked out the items in his pockets and charged, presumably, an account on file. Pretty cool that this is close to being reality.
My problem is this: What happens if I bring an item I have already purchased INTO the store, and then walk back out? Am I charged again? How will the system be able to differentiate items already purchased from those buying this time through? This is mostly for clothing stores (at least, in my head), but what is the answer here?
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