13"? E-book readers should be smaller, not larger. A phone size e-book reader would be perfect for fiction. It would be crazy lightweight, you could read all day without having to rest your arm to hold your book.
The size is also perfect for reading: your eye can focus on several entire lines simultaneously without any eye scan.
I have several nice e-readers, but I always read on my phone because the size is much more comfortable. That forces me to sit up so I can rest my arm in my lap.
In the dark an OLED screen will always be superior to e-paper due to the lack of a backlight.
I use Kindle Voyage and the reading experience in the dark is superior to that of iPhone 6. The screen is lit but it doesn't shine in your face, so you can read comfortably for a prolonged period of time.
I still read a lot on the phone because it's always available but with 3G enabled Kindle you can freely switch between the two devices and always pick up where you left off no matter what device you're using.
I somewhat still prefer reading paper books but I do majority of my reading on Kindle. It's always available, it can hold thousands of books and if there is a book you want to read chances are you can get it on your device within minutes.
I'd love to see something with a slightly smaller screen than the kindle voyage, with physical page turn buttons ON THE BOTTOM, for comfortable one handed reading. Ideally physical buttons on all 4 sides so it works however you want to hold it.
The size is also perfect for reading: your eye can focus on several entire lines simultaneously without any eye scan.
I have several nice e-readers, but I always read on my phone because the size is much more comfortable. That forces me to sit up so I can rest my arm in my lap.
In the dark an OLED screen will always be superior to e-paper due to the lack of a backlight.