Comment by Barbing

>But I also have not seen them widespread at the physical outlets I shop at.

Me neither. If it parallels the arc of those restaurant buzzers [USA perspective]:

-Big chains first (Olive Garden) with quality industrial systems

-Then, small businesses with dinky systems sold on Bezos site

What do you think, someone would have to be fired if e.g. Best Buy tags were super flaky and reset at random nationwide?