A quick look on Abe-
http://www.abebooks.com/servlet/SearchEntry
Shows that much of what's at first considered landfil or shredderfood is still in play.
and if the books ARE so value absent?
Then consider some creative reusages:
http://www.wikihow.com/Make-a-Hollow-Book
Bookshelf ideas:
Invisible.
http://www.instructables.com/id/EOFOYM0RBUEXCFH30A
made OF books.