At SonyStore US (Click here and see for yourself) you can get plenty of Sony cameras for a ridiculous price. The A7r for example sells for $199 only (Click here)! And the Sony 500mm f/4.0 got a $11,700 off on Amazon US (Click here to see it).
This obviously has to be a mistake! Anyway, if you buy the camera you may get the cam for the currently displayed price?
UPDATE: Sony now pulled the A7r page and Amazon corrected the 500mm lens pricing!