We have a Kindle and we use it for hours every day. I download blogs, read-alouds for my kids, many of their homeschool books, classics (all were free), and even Army survival reference books. It’s the single best gift we’ve received as a family in years. It took a few days to get used to reading a book in this form, but now I love it. If you can, buy one. Being able to instantly get a new book from just about anywhere in the world is one of the best features. I subscribe to Townhall, National Review Online, and American Thinker, don’t need to have an internet connection, and can read their articles no matter where I am. The Kindle is worth every penny and then some.
I bought my son one, and he love it. He’s a submariner, and likes to read. Works anywhere in the world to download (when they’re surfaced), goes for days on a charge, and doesn’t take up much of tiny amount of personal space you’re alloted on a submarine.
Those are ones I would want paper copies of, especially the sections on "What to do when the power grid goes down".