I would never take a train, but that's because I have a car. If I lived in NYC and had no car, then it'd be a different story. People pay $89 for bus trips from the city to VT including lift tickets (http://frugaltraveler.blogs.nytimes....ermont-by-bus/), so if they can get the price down around that level, then I can definitely see it being a viable option.
But I can't see that happening.