Since my recent purchase was a Kindle Paperwhite, I am going to keep talking about it for another post lol.
Reading on the kindle is nothing like looking at a computer screen. I too am on computer all day, and didn't really ever want to read at night on iPad, and my eyes would get tired when I did read on it. Kindle isn't like that at all, my eyes don't get tired until it's time for me to fall asleep. Footnotes/endnotes are way better, as is reading longer/bigger books (iQ84, Team of Rivals, and yes, IJ are all much easier to handle and read on an e-reader). Also I can't check email/twitter/internet on it, like I could on iPad (and did all the time).
I also like regular paper books, always have, and probably always will. Doesn't mean I don't like the Kindle though. As recent purchases go, it's a total highlight. This is my first e-reader (other than using iPad as one), I got it because I had a bunch of amazon gift cards, and I love it way more than I thought I would.