The problem with most get-rich-quick schemes is this. Many money making opportunities stem from market inefficiencies. Once many book buyers read about the inefficiency or the other business idea, it is not inefficient any more. It is not unique any more. The market advantage is lost. Remember Don Lapre?
When you publish a book about buried treasure, complete with maps, guess what? It gets dug up!
I still wouldn't buy the book. It looks weak.