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The real estate signs made sense to me, because if you're interested you'd probably snap a photo of the sign anyway to remember the address and agent. But I don't get why you'd make your customers scan a code in your store -- they're already IN YOUR STORE.

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Agree on both points. Another situation where I've found QR codes useful for the consumer is links within print publications. I would hesitate to follow any QR codes in a print ad, but for something along the lines of a follow-up video to an article, QR codes can be convenient for the reader.

I think the idea is to find out more about a product. Some people research a product before they get to the store, but some people don't. That's especially true for impulse buys.

I see the value of QR Codes in stores as being a way to quickly give you more information about a product.

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