86 Dollar per Pound Sashimi

Was at Tensuke Sunday and peered into the sashimi cooler. There's 86.00/lb maguro in there. Had some questions.

Where do they get this expensive fish from? Does True Market distribute this kind of product?

Any restaurants around town serving 86/lb product?

http://imgur.com/HIyHf

http://www.tensuke-chicago.com/