Moreover, most print books, magazines and newspapers aren't even fully read by the buyers, let alone multiple times. Its a huge industry producing, promoting and selling mostly single-use items.
And the used market for most books is virtually non-existent: I had to move a couple of times and the paper weight was one of the biggest hurdles. I dumped lots of books because I couldn't find a buyer on the used market (handling would far exceed the value of the books, some companies buy used books only based on weight and condition) and even libraries and social services like the Caritas declined to take used books.
So, I'm really wondering why we as a society aren't more demanding on the sustainable side of the publishing business, especially the environmental effects. Ebooks could perhaps be a much more environment-friendly alternative, but I agree that publishers and market places have done a lot to make them less attractive, affordable and available for most readers in comparison to printed alternatives.