I think I remember a post/story about McD's claiming that the $1 million prize was physically impossible to get, and denying the guy who got the Boardwalk, Park Place pieces. I'm pretty sure they only printed 1-2 of the "last piece" of any color and sent them off to different parts of the globe. They probably printed hundreds and thousands of Park Place, but printed 1 Boardwalk piece and mailed it off to Alaska.