In the 1980s, American Airlines needed money, so they decided to start selling passes for unlimited first-class air travel for life. At the time the passes sold for $250,000 (around $600,000 right now). Mark Cuban bought one of these tickets when he sold his first company, (MicroSolutions) for $6 million. In 1994 American Airlines stopped selling the passes, but they did offer it again in 2004 for $3 million dollars each. None of them sold.