Thanks for the feedback. I'm sorry to hear that you're disappointed about the price. We've considered selling the book separately, but it's all really a package deal as there are quite a few references to the spreadsheet throughout the book.
Ultimately, we chose to price the book based on value. It's less about whether you're paying $79 for a book than it is about paying $79 to cut hours, days, or even weeks of pain and mistakes from the process of launching an application.
As far as the money back guarantee. I stand by it, and fully plan on processing those requests immediately should any come in.