Trains and buses aren't exactly cheap, and the service contracts on top of that are even more. Subway cars (not trains) cost over $1 million each [1] [2]. [1]

Trains and buses aren't exactly cheap, and the service contracts on top of that are even more. Subway cars (not trains) cost over $1 million each [1] [2]. [1] https://en.wikipedia.org/wiki/R143_(New_York_City_Subway_car) https://en.wikipedia.org/wiki/R143_(New_York_City_Subway_car... [2] https://www.bart.gov/about/projects/cars/delivery-plan https://www.bart.gov/about/projects/cars/delivery-plan -- Says $184 million is equal to 104 cars.