> I wasn't even aware that the Fury was built much after the 70s.

The name was in use almost to the end of the 80s. They called it the
"Gran Fury"; along with the very similar Dodge Diplomat it was one of
the stereotypical squad cars of the decade. See for instance
http://www.allpar.com/model/fury.html

Unless it is truly in little old lady/church/etc. condition or has
some special (and documentable) provenance, the cash value and
collector interest of that last generation would be modest. They're
decent enough grocery-getters if you get a good example.

Cheers,
--Joe