The spa generally offers reduced rates while the ship in in port - with most people off the ship, the staff still tries to make money. There will be advertised specials, or you could also stop by and ask. Majesty is indeed an older, smaller ship but it's still quite nice and you'll have a good time for sure! I always go with the soda card, it's definitely worth it for me. Also I agree with other posters, it is cheaper to book excursions directly with local operators. Regarding Atlantis, I remember reading that there is a Choice hotel - Clarion Suites, maybe - that is next to the Atlantis and offers complimentary passes to the Atlantis property. Someone said they took a cruise and booked a room at this property to get Atlantis access for cheap, and just used the room for an hour. I don't remember where I read that, so take it with a grain of salt, but it's worth investigating to save a buck.