"if you were to charge someone $100 per person extra for all inclusive they would have to drink over a hundred drinks per cruise to cut into liquor cost, and really who is doing that"

Since I am not sure how to do that "quote" posting, I have posted Frank's above.

Frank, not to belabor the point, but I was in the hospitality industry in another life. It is not just about covering liquor costs being all-inclusive. It is about recovering lost revenue from no drink sales. I agree with what you say about the hotel thing and people drinking less in four hours than they do in one. However, this is a cruise, usually for 7 or more days, and we usually go to our holiday habits on cruises. I certainly drink more on cruises than I do at home, and probably less than at a two hour cocktail party.

For me, I am going to leave this to Radisson to decide, as I'm sure their people have more than enough information about passenger preferences (like when above, Ngaire said people won't book with SS because they don't want to subsidize drinkers). While I would prefer all-inclusive, my bar bill never bridges the difference in cost of most Silversea cruises, unless they are deeply discounted. So like Joanna, I will take that in consideration if there is a good deal and itinerary(prime reason) on Silversea.