On topic, how does the eReader world look today? I tried one a couple of years ago, and as a person with ADHD I was constantly frustrated how bad the experience was in terms of responsiveness.
I can see it could work for a book that you access linearly, but for technical books, where you often need to switch between pages it was a chore and I couldn't focus my attention on reading.
So I still buy paper books, because I can quickly flick between the pages and access my bookmarks.
The downside is that they use a ton of space in my room and I am hoping that one day someone makes an eReader that I can flick through pages as fast as a real book (or faster).
Full page refresh is still slow, but the interfaces have gotten better to mitigate that a little. I've never used a Kindle, but on Kobos there's a scrubbing interface that appears that shows pages about 1/8th size so you can flip through them visually a lot faster (due to partial refresh), and the page location scrollbar places enlarged dots around places you've been recently, so it's not hard to flip back and forth between a few places (e.g., your current reading location and an endnotes section).
I have a 2014 model an I only use it for narrative reading. I'm not sure the UX has caught up with the need to quickly go between different areas of a book. But I hear the new Kindle Paperwhite has a really fast refresh.
