Carnival Corporation which includes several lines like Carnival, Holland America, Princess, and others has not as of yet joined the lines that have supposedly stopped last minute deals. Certainly the cruise lines don't want empty cabins and that's why there still are sales. The real money makers for cruise lines are on board spending so it's about butts on board drinking, gambling, in the spa, buying t-shirts, going on ship sponsored shore tours, and paying up-charges for specialty restaurants. Cruise lines are torn, though I'm not sure how much, between filling cabins at whatever fare and not aggravating the loyalists. I'd venture if the present scares, whether rational or not, like those of ISIS attacks, Zika, and the most recent downturn in the stock market continue and bookings drop off sales of all types will be back in force across all the lines.