Max Planck once said "Science advances one funeral at a time." So will it be with e-books. Over time, the people who must read a book on paper will all grow old and die. And future generations of young people who will be the future generations of adults will never give electronic book reading a second thought, because it is perfectly normal to them. (Okay, there may be an occasional fad of nostalgia for the past, but it will pass, as fads do.)
The mistake every person who resists change because "we never did it that way before" is in thinking that the future belongs to them-- it doesn't.