Children simply don't make the distinction; a book is either good or bad. And some of the books they think are good are very, very bad indeed.
When a company is charging money for a product - as Evernote does for all above its most basic service, and same for Dropbox and SugarSync - you understand its incentive for sticking with that product.
I can't tell you how much we laughed on the set to have Alec Guinness in a scene with a big, furry dog that's flying a space ship.