Kukimoon, very well said. I have sailed frequently on Regent/Radisson. There are a few snooty passengers but they are most often the ones with nothing to brag about. In general, I have found no one looks down at you when you book the cheapest cabin (which I usually do). After all, there are many who take the world cruise each year in the smallest cabin.
This past cruise, I was given a good offer on a Penthouse so I had a butler. It was a novelty for my wife so we did use the butler a lot for things like delivering invitations and making dining reservations. After three weeks, though, we found we really weren't using the Butler except for the normal daily deliveries.