Why is Kindle Oasis so expensive?

First the size wows you, then the price floors you. That Amazon's new Kindle Oasis is its skinniest, most unusually-designed yet didn't come as a complete surprise thanks to earlier leaks, but its eye-watering cost in the flagship spot at the pinnacle of the company's ereader range certainly dropped some jaws. The question is: is the Kindle Oasis worth the …