"High-speed rail isn't meant for DFW to NYC distances. "
Why not? Include comfortable, silenced sleeper cabins and I rather take spend a night in a bed and wake up the next morning rested and fresh, than going through the stress of flying.
For long distances like that, planes are faster and cheaper so the market is smaller. Yes, there will be people who prefer the sleeper train, but more people will prefer a shorter, cheaper flight. For distances under 500 miles, trains usually work out faster once you factor in security, travel to and from the airport etc.
Why not? Include comfortable, silenced sleeper cabins and I rather take spend a night in a bed and wake up the next morning rested and fresh, than going through the stress of flying.