Right, since ebooks are so permanent (anyone still able to read their ebook .pdf of William Nolan's _Logan's Return_?). Who all got caught flat-footed when Amazon quit carrying their previous line of ebooks.
Books will certainly persist as sumptuous presentations and large format texts for the foreseeable future. Until there're standards which allow instantaneous transmission of content, print will continue to exist for ephemeral things like advertising flyers, concert and theatre programs, &c.
Mainstream books will slowly be replaced by files on ebook readers --- but given the slow market penetration which such have had it's going to be a few years yet.