This article on a panel at the BEA articulates the publishers' perspective about as clearly as I've seen it: "It was a mistake to let Amazon put out e-books simultaneously and charge the price it did. It will have a negative effect on the paperback." An agent agreed that the paperback may well "go bye-bye." (I swear, this professional terminology is a quote from the article.) The publisher added, "Something’s radically wrong about the way the market has determined the value of the book. I don’t think there’s going to be a pick-up in volume to make up the difference."