I looked at the excursions and what surprised me is that full day excursions that charge over 200 per person don't even include lunch. A trip to Boston/Cambridge, which is about an hour drive? each way...is over $200 per person. You'd do better to rent a car with another couple and park it in Boston and take the T and take a tour there, than to take one of the "included excursions." The Boston excursions look out of whack.
The NYC port excursions look ok, but you can do the NYC/Ellis Island trip for $23 pp. plus cab fare. You could negotiate a black car.