Taxpayers (and freight customers) shouldn't be subsidizing a novelty form of transportation for rail fans. If there's a subset of people who want this service, they should pay sufficient fares to cover the cost of service. Amtrak isn't doing that.
"Yes, Amtrak is subsidized. So are all competing forms of transportation. Highways cover only 51 percent of their costs from all user fees, including the gas tax. The rest is paid by subsidies of one form or another, especially from local property taxes. Airlines receive massive subsidies in the form of airports and the air traffic control system. The day after 9/11, the airlines ran to Capitol Hill and were immediat…
http://airportsforthefuture.org/did-you-know/
Air is the true competitor to the long-haul train in the US. It is cheaper and faster. There are separate arguments for/against transit and regional trains, but long-haul passenger rail, which is what is discussed in TFA, is essentially a novelty.