Nikon Japan reports short supply/strong demand for the retro-styled Nikon Df DSLR camera:
The "Df", announced after the date of November 5, 2013, state that received a reservation more than expected, production can not keep up with your order has continued. I am sorry to have to apologize for the inconvenience to our customers. Because we will work to continue intensive production, so thank you for your understanding.
That's not really the case in the US where the Df is currently in stock in all major retailers. In the US the Df is even part of the current Nikon instant rebate program that is set to expire in two days (December 14th).