> 3. Digital means no tyranny of authorities. Gone are the days when books used to be "banned" by state authorities for whatever reason. With digital, no one can subvert your freedom to read anything you like.

That depends on how controlled the digital platform is: a few years ago Amazon deleted[1] purchased books from Kindles (George Orwell's 1984 - for maximum irony points).

1. http://www.nytimes.com/2009/07/18/technology/companies/18ama...