NYC to DC round trip is 6 hours scheduled time by train or 3 hours scheduled time by air. Granted Penn and Union stations are more convenient than Newark and Reagan airports, but not that much more convenient.
It is a nicer trip though, I'll give you that. But not nice enough to mean an extra day away from home.
It is a nicer trip though, I'll give you that. But not nice enough to mean an extra day away from home.