Don't sweat it over the cost of the 400 f/2.8isII. This one checks out at over $2 million.
http://www.petapixel.com/2012/08/27/the-worlds-most-expensive-camera-lens/#more-70978
Of course, it's a Leica...
-PW
http://www.petapixel.com/2012/08/27/the-worlds-most-expensive-camera-lens/#more-70978
Of course, it's a Leica...
-PW