My brother and sister, both in the healthcare field, say stick with traditional Medicare, as the Advantage plans don't want to pay. Private business are all about profit. I'm still 4+ years away from that decision, but already know what it will be.
When we were on the POA in 2011, they sold wine packages. We purchased 6 unopened bottles that were delivered to our cabin. Perhaps things have changed.
It does seem to depend on the ship. It used to be that the specialty restaurants offered to have the dessert delivered to your room. On the Breakaway earlier this year, I asked about that option in Cagney's, and was told the room service charge would apply. So I think it turned out to be about $13 to have it delivered. I asked about taking it with us, and was told that was not allowed.