I know it's only one of the points, but it's not true that ebooks are still "rapidly rising in popularity" - while they do seem to continue to become more popul

I know it's only one of the points, but it's not true that ebooks are still "rapidly rising in popularity" - while they do seem to continue to become more popular, the trajectory has clearly slowed. It seems, generally speaking, that we're nearing if not already at a stable rate of ebook market share (on a revenue basis, at least w/r/t the US and UK markets, the only ones I can claim to watch closely.) For point 1, while I don't have the data, I would be very surprised to find out that over the course of "decades" book sales (or even just print book sales) have "declined", especially given the rate of population growth. What has, 100%, happened is that sales have moved online, for the commodity reason you mentioned, and Amazon's inclination to deeply discount titles to gain market share (which they now are moving ever-so-steadily away from).