Update: I just did the math, and at $44.99 for 15 books, you'll be paying 2.99 per book. I'm not going to do a per-page cost, though. You can figure that one out yourself.
$2.99 per book is an amazing deal... honestly I think I will buy this simply because I own none on my Kindle, and it is my fav series of all time. i pre-ordered the companion off amazon today as well, only $20, halfprice if you preorder now... bet it doesn't stay that low long xD
Just purchased it myself, already own all books in physical, and two on Kindle, I just can't help myself, to have them all together in one bundle like this including prequel at such a cheap cost is hard to pass up for my favorite series of all time.