Paul, Regent has always had a "deal" for upgrade once onboard - you pay half the difference. I never found that to be worthwhile. I always thought that if they did more market research, for those cruises that are definitely not selling out, they could "maximise" their income by finding a sweet spot. Here, it was a flat amount for an A or B whether you were booked in H, G, F, E, or D. This offer was given to lots of people. I am checking inventory on their site to see if the "A" and "B" penthouse suites do, in fact sell out. This leg of the World Cruise is not very crowded due to long air and lots of sea days while the current Auckland to Sydney segment is sold out.