I am not sure about the towncars....but we booked our Disney Transfer from the airport to the terminal the other day...and we are cruising in Nov 2004. We chose Disney Transportation (I know it is more...) because they will take our bags from the checkin in Boston to the terminal in Port Canaveral (we are flying Song). So we never touch our bags from Boston until we need to unpack them! I thought this was worth the extra $$$.