I am not a fan of ebooks. When you buy a real book, the book is
yours. You can keep it, sell it, give it to your library, give it to your child or friend, doodle in it, whatever. However, you cannot ever really buy an ebook. What you buy is a license to read it, but licenses aren't tangible things that you can give away or resell, and they give you very few of the rights that owning a book does. If you try to do any of these things with an ebook (the same kinds of things people already do with real books) then you are a "pirate"
Additionally, ebook sellers do reserve the right to remotely delete your legally purchased ebook for whatever reason.
Amazon already did this with Nineteen Eighty-Four and Animal Farm in 2009. While Amazon made lip service to not ever doing this in the future, the capability remains (and not just by Amazon).
Imagine if something came out that a particularly powerful entity (a large corporation, interest group, or government) did not like... this actually happened in 2010 with
Operation Dark Heart, which was deemed by the United States government as having sensitive information after it had already been published. The government bought out most of the first print run of this book and had it burned, then permitted the author to release a censored version. There are uncensored first edition copies of Operation Dark Heart floating around on sale for a couple hundred bucks, and there is probably a PDF of the uncensored version floating around as well (Wikileaks has it, reportedly). Now imagine if real books had already become a thing of the past and everything was exclusively released as an ebook. Now the government doesn't even have to burn anything! It can just pressure Amazon to remotely zap the book off of peoples' Kindles.
Ebooks also pose problems for libraries, since publishers are wary that libraries contribute to a loss of sales.Richard Stallman (founder of the Free Software Foundation) wrote a short story in 1997 called
The Right to Read where he accurately predicted the future of ebooks and copy protection schemes.