Hi... My family and I have a cruise booked for January 2019. However, I'd like to book another cruise for the Christmas 2019 season when the prices come out next week (when they're the least expensive) because I've noticed, the longer you wait the more you end up paying. At the same time, I have heard that you get a good discount with onboard booking. Does it make sense to make a reservation when pricing comes out and then in January, compare the price/discount while on board?