E-books are great if it's impractical to have a large pisyhcal library. I lived in Korea for the last four years, and every purchase was made with the understanding that it would have to be mailed home or gotten rid of at the end of my stay. Now that I'm home, however, it's solid books all the way-- if I'm not sure if I want a pisyhcal copy, I check it out of the library first. My Kindle is still convenient for trips, though!