Allow me to play devil's advocate here for a moment. It is a well known fact that publishers of books used in University courses regularly publish updated edit

Allow me to play devil's advocate here for a moment. It is a well known fact that publishers of books used in University courses regularly publish updated editions of their books where they will arbitrarily reorganize chapters and subchapters, as well as reordering, removing and replacing exercises. They do this in order to force students to buy a fresh copy of the book so that the publisher can have more money. Some lecturers will go through the effort of supporting multiple editions of the books that are used in the curriculum. But for many lecturers this additional work is a burden that they cannot allow themselves to spend time on, so they end up requiring all students to use the same edition of each book. Thus many students have to buy the newest edition of the book instead of being able to buy the one from last year secondhand. Likewise they are then unable to sell these books to anyone next year when yet another edition of the book is published. Giving the publishers a cut of the resale of books will disincentivize them from the current model where they constantly make bullshit edits to their books. Of course there are changes to books used in education that are actually necessary as information becomes outdated. The meaningful edits still need to happen. I'm talking about ending the bullshit edits. And in fact, once we have the publishers agreeing with resale of ebooks, they could then sell patches/diffs for the books that can be applied. Finally we can have resale of books used in education always. tl;dr: This is actually good for b̶i̶t̶c̶o̶i̶n̶ students.