This book is one of the most expensive available on Amazon in Kindle version. It does not exist on paper version. It caters to the richest people. Those who can buy it without flinching. It is not for the poor, stingy, or for those who count their money.
Therefore, please do not buy this book if you do not have enough money on your bank account. If you are not wealthy but think you can read this book and ask for a refund afterwards, give up immediately, you are not the readership target.
Any unusual thing is expensive! This is the law of supply and demand. Only a privileged few can buy and read this book. The others: go your way. Many free books are available for your long winter evenings. However, if you have a lot of money, and if the price of this book does not disturb you more than that, welcome and good reading.
Of course my first instinct when I saw this was to gchat Mike Dang about it, to which he said: