This used to be true, but a lot of pricing is automated now, based on location, pricing of similar products, etc etc. it’s also still somewhat in its infancy.

This used to be true, but a lot of pricing is automated now, based on location, pricing of similar products, etc etc. it’s also still somewhat in its infancy. Remember way back when high frequency trading was first a thing, you’d hear stories about some HFT houses cranking up the prices of some little penny stock on the basis their algorithms saw the price go up and then jumped in, causing some kind of feedback loop? I think that’s exactly what’s going on now, only at a pace more in line with merchandise pricing (over weeks rather than milliseconds).