Ok, I've been known to accidentally spend a serious chunk of change on Kindle ebooks, primarily because it's "invisible:" money. Each time you buy a Kindle book, it processes the order immediately, you don't rack up a 'cart' as you do with normal Amazon shopping. So, instead of seeing a nice lump sum and going "HOLEY MOLEY!" and removing some of the titles, at the end of the month you get your bank statement and say several words that your grandmother definitely would not approve of.
That is not likely to happen with this ebook.
I see there have been no reviews. Perhaps I'm not the only one to think WTF???