I seem to remember reading on Allearsnet about the sale of lifetime tickets (I think it was when DL opened) - I've done the searches but can't find the article. Still - from the pages of Allearsnet is the feature on the 600 Millionth guests -
600 Millionth Walt Disney World Guest Honored at Disney-MGM Studios To blowing horns, a blizzard of confetti and a beaming Mickey Mouse, a stunned 9-year-old Jacqueline D'Ambrosi of Woodcliff Lake, N.J., was welcomed as the 600 millionth guest of Walt Disney World Resort on June 24. During a ceremony at the Disney-MGM Studios, the D'Ambrosi family was presented with lifetime passes to all four Walt Disney World theme parks, including the new Disney's Animal Kingdom. The D'Ambrosis were honorary grand marshals during the new "Disney's Mulan Parade" and received a VIP tour of the Disney-MGM Studios