I use a laptop which has its keyboard detachable. It has the main advantage of being easy to use as a tablet and easy to use as a computer. Also since the keyboard is detachable I can use the laptop as an external screen, and can also use an external mouse with bluetooth. To avoid buying a tablet to read books, this is a good trade off. I think for people who read paper books though a desktop would be definitely better. I had shoulder pain at one time by using a laptop all the time with my upper body position which derives from the height of the screen. This got solved by elevating the screen. So bottom line, to use the screen as an ebook reader, the surface pro or the rog flow z13 I think are good tradeoffs. It has also the advantage of being portable enough to travel and is reusable as a desktop.