My concern with getting Plus is that I'd be stressing during the cruise about making sure I get my money's worth. Our situation, plus the fact that half the days are in port (and will largely be off the ship), probably would not make it worth it. So, I'll just buy what I want when I want it, and not worry about whether I would have got a better deal if I had Plus. Not to say it isn't more of an obvious choice for a bigger drinker or one with lots of ship days, but I'm not going to stress about it.