Personally I can appreciate the incrementally elevated level of service and willing to pay for it (to some degree). But the question is - is this really the case? We sailed on old Crystal, SS, O and Azamara, and I cannot honestly say that the level of service was that different.
Yes, it was nice to have a butler on SS - but SB doesn't have butlers. does it make SB less luxury than SS?
Maybe someone who cruises extensively (like 3-4 months a year) and sails say 3-4 weeks on SS and then a few weeks later 3-4 weeks on O can really feel those nuances. We sail around 3 cruises a year, each one around 10-12 nights, and truly enjoy all of them - maybe it's just not frequent enough to truly compare them and see the difference? But to me, when I see the current prices of SS and Crystal, I just don't see the value.