The term chain in this case usually refers to the measuring instrument rather than a unit of length; the distances measured with such an instrument are normally measured in feet (and usually decimal fractions of a foot, not inches).
Messages: 7,549. Likes Received: 4,600. For the record, Disney did try to sell lifetime passes at the Magic Kingdom the first year it was open (1971) called a Gold Pass for $100. This pass was said to be good for a lifetime and for any additional parks that they may add in the future.
At Walt Disney World, Disney is introducing Silver, Gold, Platinum and Platinum Plus passes, replacing the old Florida Seasonal, Annual, Premium and Premium Plus Annual Passes. The Silver Pass sells for $414.29. The Gold Pass sells for $584.69 and includes admission to all WDW parks, with several blockout dates.