"I can’t tell you how many people I’ve heard saying, “But paper isn’t going to disappear.” That isn’t the point! If you ask the wrong question, the right answer to that question isn’t going to help you. So the question isn’t, “Will paper disappear?” Of course it won’t, but that’s not what matters. What matters is that paper is being marginalized. Did firearms eliminate the bow and arrow? No--some enthusiasts still hunt with a bow. Did the automobile eliminate the horse and buggy? No -- I can still get a buggy ride around Central Park if I want."
Barry Eisler at Joe Konrath's blog in a conversation on Eisler's decision to self-publish his next novel. It's a long back and forth between the two but worth a read.