Mamiya M645(!?)

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3352&item=7516582799&rd=1

This seems like a real good deal?? Can anyone enter some thoughts.. I want to get a MF SLR for portraits, weddings and everything else..... This seems to be a perfect set up for it... In this price range, is there anything better?

From what I know the 1000s was released in 1976 and produced until 1990. So at best it's 15 years old. But it has had less then 100 rolls of film? Why? Why did the owner spend the money on the power drive. to shoot just over six rolls a year.

I don't know. Does not add up to me.