And I have no problems carrying a large amount of books with me, a few years ago while visiting home from uni, I decided I wanted my book collection up at uni which was nearly 200 miles away, now I don't drive, so I put them all in a massive sports bags and went back on the train with several changes, yes I admit, they were heavy, but I prefer my books in hard copy, I prefer to have the texture of them in my hand, knowing full well that they are more than a whole bunch of digital data, I prefer to look across my room and see all the books on my shelf or sitting cross legged on the floor with research texts surrounding me. Now I know these PADDs have there place, but for me, I prefer having a physical paper book in my hands, it feels far more intimate.