While tablets are convenient, the battey life is short and hard to use in sunlight. eBooks are made for people that have read a lot of books. For people that like a substitute for a book, only eBooks work. Readers need something with a long battery life (how often do you charge your smart phone and tablet), able to read in sunlight. I can barely see my smart phone for glare, at times.

Until tablets have a real anti-glare screen, bigger screen and cheaper, they will not replace print. Reading a magazine on a 6 or 7 inch screen is no where as pleasant as reading the actual magazine.