I see a lot of complaints about Penguins outrageous pricing for the Kindle version of this book but spare a thought for those not living in the United States.
I had pre-ordered the ebook months ago and now it is is close to release I see the gap get even further.
I was prevented from ordering this version for $14.99 because Amazon tells me that "Due to copyright restrictions, the Kindle title you're trying to purchase is not available in your country: Australia.".
I am expected to pay $21.25 USD for a version released through Hachette Book Group.
This sort of price gouging is currently being investigated by the Australian Competitor and Consumer Commission.