Actually there are sailings with less than 100% load but that happens more often on the upper end luxury lines than the mass market lines. While policies differ from line to line the all-inclusive luxury lines generally do not do last minute “flash” sales. That’s driven by the upfront nature of their business model. Butts in beds on an all-inclusives does not generate the same kind onboard spending that it does on a pay-as-you-go mass market line.