Did the paperback kill the hardbound book? No.
Did digital upload kill the DVD and CD? Granted I have no idea where you could find a VCR tape, but there are still video stores with DVD, Target has a huge section of movies and albums on CD.
Agreed! (Though VHS tapes might be a goner!)
I don't think the ebook will destroy the printed book simply because as much as we all love things electronic, there is also nothing more wonderul than reading a hard copy. Books have also been around for a hell of a lot longer and while we are very much in the digital age, I think they will continue to be around for a long time.
I don't think printed books are going anywhere anytime soon. I also wrote on this topic, at http://yourlibrarycard.blogspot.com/2011/11/whole-kindlenook-thing.....