Whats the best strategy for getting Club91 on the suites (JW/Caribbean/Grand)? None of the suites have an option to add C91 at time of booking on the Marriott website, I dont know why? The differential between a basic room and Club91 room on the Marriott site is only an extra $60 for 2 adults. Ideally I'd want to have the same +$60 uplift to get a Club91 Caribbean Suite. The Club91 website refers to the basic Club91 add-on offer being $250 per couple, and I know people have had other offers/negotiations, but still not as good as an upfront +$60.

I wonder if the option is to buy a Club91 room and then attempt to upgrade. But then that might mean I lose the Club91 entry if it moves into a basic Caribb Suite.