Two words: FONT ADJUSTMENT.
Last time I bought a Game of Thrones book in paperback I could hardly read the damn thing what with the grey paper, tiny font, convoluted things I had to go through to hold it, read it and not break the spine..
I absolutely LOVE my kindle. I love being able to order the next book in a series instantly and have it right there. I love that it doesn't weigh anything, that I never lose my place, that just clicking one font up from the standard instantly makes it more readable for me.
And most of all I love that it looks just a bit like a padd