I started reading ebooks on my Palm III in 1998. Now that I have a tablet, paper books seem quaint and even annoying some times.
Two households in our family own hardcover copies of Clavell's Noble House , an alarmingly thick novel from 1981. It weighs over 3.5 pounds. It makes good travel reading. I've read chapters out of different copies while on visits, but never managed to finish it. And I wasn't going to carry it on a plane. I finally bought the Kindle edition. It lives weightlessly alongside a few hundred other books on my 1.4 pound iPad.