The curfew isn't necessarily designed to affect activities. Some ships do interpret it that way, but that is usually only on longer, off season sailings. As for price, nobody should ever click and book. The price you see shouldn't ever be the price you pay, it's like going to a dealership and just taking the car you want. Travel Agents and Cruise Line Representatives alike have far more freedom with Royal Caribbean's rates than they do with Carnivals. Granted, I should note that when I say this, I reference only ships that are comparable. In many cases Royal Caribbean's ships cannot be compared. Though they are designed to compete with each other, a 7 night cruise on a Voyager class vessel simply cannot be compared to a 7 night cruise on a Conquest class vessel, even if their ports of call and all other aspects are the same.