There's way too much cynicism here and a lack of insight as to how consumer retail works. 'Privacy invasion' aside there's a lot of obvious benefits to this. 1) Impactful Displays - this will increase sales. In your local coffee shop, going from the static nice pictures, to 'active displays' unambiguously generates more attention. It's a little bit like having 'nice photo' menus vs 'empty menus' for regular dining. O…
If you sold this as AR using expensive glasses everyone is a believer.
> Easy pricing changes.
Prices that change by the hour, or as stock runs low is an interesting idea. Corporate could bring in a hourly special. Corporate has total brand control. Corporate can pull items by hiding them if said company doesn't want to pay for peak. The camera can give you personal specials.
The power is in corporate control. The weakness is the complexity you mention.
I suspect the cameras might be the what's really going on. Camera's by themselves wouldn't be acceptable. Comes with fancy screens though...