My crazy conspiracy theory is that there is some ownership overlap with traditional display manufacturers. If it gets used widely as a general-purpose display t

My crazy conspiracy theory is that there is some ownership overlap with traditional display manufacturers. If it gets used widely as a general-purpose display this can cannibalize sales of LCDs as the technology gets better and cheaper. [1] That's one reason you can get good and cheap e-ink if you are building an ebook reader [2], or if you are building these little price displays for the shelves in supermarkets. But if you want a monitor, you have to either pay a lot of money or buy something for tinkerers, there is no inbetween. ---- [1] The rational reason would be that they have only limited production or support capacity, and sell to the easiest, most lucrative customers first. [2] Of course, for e-book readers you also have the benefit of scale if you are Amazon or Sony. But there are also smaller vendors, and in the case of the digital price tags the companies that make them are mostly smallish businesses.