Let's be honest, Amazon has its heart set on world domination; it's the illuminati of book retailers...
But let's look at it logically - will books ever die? No, they won't, because the likes of you and me, and all the other folk around here want to 'feel' a book as well as read it. We'll always buy books, and so will millions of others around the world. So as a result, the death of the traditional book wouldn't be a viable option.
Piracy hit the music and film industries hard, but people didn't stop recording songs or making movies, did they? They took it on the chin and carried on, much the same as publishing houses will do in the future; where there's demand, there will always be supply. They can dress it up how they like, scaremonger, cry poverty, but in truth they will never cease doing what they have always done - and that's publish books. These companies will evolve, no doubt, but they will never give up on what they believe in.
We all need to hold our nerve in these dark times, and try our very best not to sell our souls to malign forces of Amazon.
*Draws lightsaber, and charges the kettle... "Die droid, die!"*