Let's be honest here, there is no bad time to book a cruise vacation. However, there are several advantages to booking your cruise as early as possible that will not only help you save money, but will give you the best possible cruise experience. Best Choice of Staterooms - One of the biggest advantages to booking your cruise as early as possible is that you get the choice of the best staterooms on your cruise ship. On some Carnival Cruise Line ships, there are just a handful of few highly desirable cabins like the wrap-around aft balconies on the Conquest