Finding books are going to be easier as copying a book is made simpler and more people want to do it because they have e-reader hardware(people in the hundred of millions instead that in the thousands).
So people will have two options: 1)Decide to pay what the publishers want. 2)Decide it's too much and pirate it.
In the publisher wet dreams people don't have objection to pay the same quantity of money for something that has distribution cost, material cost, manufacturing cost that for something that has virtually null copy cost. People are not stupid.
What I think it will happen is this: Authors will start selling directly, as with music there is no need for publishers now.