The number of arcades and viable distributors declines on a daily basis. Pinball machines are considered by most to be ridiculous dinosaurs in today's entertainment age of home videogame systems. At best, they're considered to be collector's items, lounging in basements and rec rooms for few people to enjoy.

With a small and dwindling supply, every machine increases in value, if it is well maintained. TZ is an exceptional pin and will probably be worth $5500-6500 in 20 years. After inflation, that's probably $67 trillion each.