I'm new to learning about ebook readers. I'm interested in buying one with a large screen -- closer to the size of 8.5 x 11" paper or larger the better -- and I would prefer no wireless, no backlight, no features other than a grayscale screen, USB connection, PDF support, and an add-on storage card slot. I'd like if it's common enough to find one used but I might pay for a new one depending on the price. Let me know if I don't know enough to be asking the right questions.
