We have a friend, an artist, whose house is on a north-facing hillside just east of Sandwich. The view from the deck is magnificent, overlooking a small lake, with the railroad track on the far side. Our friend is vehement in her displeasure at the presence of trains on that track, viewing them as an insult to her personal peace and tranquility. She knows of my rail interests and we tease each other about our respective positions, but her dislike is real. It's certainly NIMBYism at its most flagrant, but she is the type of person who will write letters and show up at public hearings. Hers is a self-centered, self-serving parochial view, but those who attend and speak at public hearings on controversial issues tend to be her clones. Out here in Colorado we're in the early stages of expanding the Denver light rail system again, and adding commuter rail to outlying towns. Opponents usually play the race card, as in "Those trains will bring (ethnic population of your choice) right into your neighborhoods, where they will (rob, rape, annoy) you."
I love the Cape, except between July 4th and Labor Day, but I have to agree with Doug that expanding rail service to Hyannis is definitely not the path of least resistance.