Bits more expensive than paper

I was checking a book I would like to buy on Amazon - How Risky Is It, Really?: Why Our Fears Don’t Always Match the Facts. As delivery from US takes long and is expensive I’ve wanted to check price for Kindle version. It’s easy as Amazon is providing you with such table:

As you can see Kindle (electronic) edition is almost 3$ more than hardcover. Yes, let me say it again, hardcover. Not even a paperback. I don’t see great future for the forests as paper is so cheap that even bits are pricey in comparison. I don’t get it, really. But it was probably some big marketing head who devised this “clever” pricing plan, so I’m for sure not seeing some great idea behind it. Or maybe Amazon decided to support post office. Don’t know. It would remain complete mystery to me I’m afraid.