That, and the fact that e-readers are unnecessary when you can load a reader app on any smartphone or tablet.
Cells and tablets are harder on the eyes, because because of the bright screen constantly being in your eyes. It’s like looking at a computer monitor constantly.
Tablets are simply easier in the eyes and they are fairly inexpensive. Also, with the discount on the books you usually get, the readers eventually pay for themselves.
I’m currently reading Churchill’s The River War on my iPad Mini. It’s a great reader which can do many other things. Like allow me to easily surf and post here.