Incredible books, but what I find disconcerting is the price of the box set, $54.99. If you purchase the books individually, the price is $49.97. A discount of at least $10 - $20 off is standard for purchasing a box set, especially electronically. This is not the iTunes Store fault, I wrote to them, and they informed me that this is the price, they were provided with. Bad move for the publisher.