We're taking our second Disney Cruise this April - destination Grand Cayman and Cozumel Mexico. We depart from the port of Miami, as Disney doesn't have cruises from NY or Baltimore. We like Disney for so many reasons, too many to count! I had to literally drag my DH last year for a cruise to the Bahamas from Miami, but he later admitted that it was one of the best vacations and booked us an even longer cruise for this April.
I believe Disney is a litter pricier than some of the other curise lines, but can't be certain since we've never cruised on a different cruise line - I'm going by what I've been told.