The Walmarts in our area went to digital shelf pricing recently and we noticed, anecdotally at least, that prices were even higher than usual. In theory, this tech should enable price management at a lower cost due to reduced labor and pricing errors, but I think it is naive to believe that it won’t be used to further maximize the extraction of value from every customer it has.
When I see and item in a store that is not marked with a price then I almost always just move along. I have to need something really bad to even consider it if the price is not marked.