Lets face it, book readers are a minority in the USA. Otherwise we would not have the folks elected that we do IMO.

Only a percentage of book readers use e-ink ebook readers. As others have stated there are lots of alternatives including old fashioned printed books. For reading I prefer the e-ink screen and have working readers back to the Kindle 1 and Sony PRS-505. Also the latest Kindle Oasis 2 and Kobo Aura One. For some apps the old Sony readers still have their advantages.
For coffee table style heavily color illustrated type books it is still hard to beat the slick paper printed book.