I am convinced the wallmarts in Canada are doing dynamic with the eink price tags. I was in the same location twice in a week to pick up snacks for a gathering and the price of chips were 50% more on the Friday vs earlier in the week.
Seems shortsighted for a retail business since people will only need to get burned once or twice to stop showing up.
Huh, with eInk prices, how do customers prove "Wait, the price on the shelf was different!", the store can just change the price as they go to double-check. As a customer you can take a picture of the price, but then it'll be an argument of "This picture is old/doctored/AI".
Of course the chances of this sort of scam happening are probably not that high, but hey, considering the country is rotting more and more, from the top...
I believe they may in the US, too. Anecdotally, I bought all of the Dr Thunder Zero Sugar at one store twice, and they bumped it about 20% for a few weeks after that. They didn’t change the other generic sodas’ prices.