United Airlines prevailed in a federal class action case over its decision to eliminate the Silver Wings senior citizen discount program in which they had sold lifetime memberships.
The program was founded in 1986 for customers 55 years and older. In 1996 the program is said to have had 560,000 members. They continued to add lifetime members through 2005, costing at that time ~ $250. The program was terminated (‘closed to new members and renewals’) in 2007.