I am traveling solo on Beyond in September. Here's something I haven't seen mentioned in this discussion of costs and profit.Since I am paying so much more as a single person in a cabin, I have LESS disposable income to spend on extras. In my case, right now I don't see spending anything on dining, excursions or the casino. Whereas if the fare was within range of what it works out to per person in cabins with more than 1 occupant, I would have MUCH more disposable income in my budget for these extras. It's as if the cruise line has determined that solo travelers don't spend as much as groups, so they're charging them upfront for this loss? That seems like a VERY strange business model and actually a loss on their part.