Earlier quoted context omitted.
when have you ever scanned a QR code and learned about/bought something? Shopping for dishwashers in-store, even after doing lots of online research. The in-store display tags have very minimal info. Best Buy has/had a QRCode on each product that took you to a webpage for that item with a lot more info, reviews, etc. It was one of the main reasons I actually bought a dishwasher AT Best Buy instead of elsewhere.
Wouldn't it have bee just as effective to have http://bestbuy.com/12345 on the label.
I still think they are overused, but they can offer a little extra connivence, as long as they aren't taking up too much space.