You're referencing the economic output of the interstate, but there's roughly the same studies with the same conclusions made about the train system. The folks

You're referencing the economic output of the interstate, but there's roughly the same studies with the same conclusions made about the train system. The folks I was responding to were discussing the direct economics of maintaining and operating the trains, and not their economic benefits. No one pays money to use the interstate, why should they need to pay money to use the train?