We had $3800 for our most recently cancelled cruise that I guess will be applied at some point to our cruise this July. It was a combo of shareholder credit and cancelled cruise credit d/t covid. When I booked our cruise this summer my amount due was $130 with the balance paid by unused paid cruises. Our cabin is a Havana Cabana on Horizon so for $130 total for the two of us it will be our cheapest cruise in a way, but not really given that it's our money they are just giving back.
Prior to the Covid cancellations our highest OBC as I recall was in the $2k range from Early Saver credits and OBC for booking as well as shareholder credit.
We can still use OBC at the casino I hope? If not we will spend it somehow.....