While the current system can be abused, it also can be used to do a lot of good. I personally am using item frames in my bookstore to make copies of people's books. Obviously, I COULD steal books and illegally copy them, but I always ask for permission and pay the author. As long as this is the case, there isn't really a problem. The problem is the greedy people that care more about themselves than the hard work of the writers.

 

Also, as a general note, I've discovered that you seem to be able to sell books in chest shops now. If you use /iteminfo with the book in hand, it gives you a specific ID that seems to work for chest shops.