Segway

Steve Jobs reportedly said it would be "as big as the PC." John Doerr predicted it would reach $1 billion in sales faster than any company in history. Dean Kamen's self-balancing scooter was unveiled in 2001 as a revolution in urban transportation. It sold 30,000 units in its first two years instead of the projected 50,000 per month. The Segway became a mall cop meme, a tourist rental gimmick, and was quietly discontinued in 2020. The company that was supposed to replace walking sold fewer units than the Pontiac Aztek.