The 645NII is the only Medium Format camera you'll ever need for doing commercial shoots, weddings, sporting events, family photos or eve just taking pictures of your dogs/cats... good way to get some internet points I'd say.
The 75/2.8 lens on this 645NII was hand crafted by a bunch of wizards in a tower and bestowed upon us mortals as a gift through which we can get the sharpest of images and creamiest of bokehs. Try it for yourself.