I have a Kindle. I use it to download free samples.
Then if I like a sample, I usually buy the book in hardcover.
Science Has Great News for People Who Read Actual Books: http://mic.com/articles/99408/science-has-great-news-for-people-who-read-actual-books
Thanks for the link, very interesting and thought-provoking. I have a library room in my house that I need to work upon, problem is the siren-song that my friends weave, enticing me to spend some time with them ... Uh, where did the day go?!
Again thanks for reminding me of this posting of mine!