Since our first MSC cruise way back in 2012 we have sailed in Inside, outside, balcony and Suite cabins long before MSC brought in their so called experiences (Bella,Fantastica,Aurea and YC) when cabins were Inside (I) 1and 2, Outside (O) 1 and 2 and Balcony (B) 1,2 and 3 and YC.
Like others we chose not to sail in the YC because we were sailing sometimes 2, 3 or 4 times a year with land holidays in-between when we only sailed twice, had we done so then we would likely have sailed somewhat less than we have done and not been to as many countries as we have done. Instead in the later years we have sailed in Aurea cabins and Suites for the private sun deck (Especially the Seaside class twice, which has the best Top 19 of all the Newer ships) Anytime dining, free massage and drink package of which those last two are alas no more. We were given the chance of a YC sailing on Seascape later this year and have decided to try it out although we won't need a Butler to unpack our cases or to take us to the Theatre. Many years ago we sailed on a R.C ship in the Med and were seated with a couple from the USA who owned a lock making business and were as we would say "well heeled" and very well dressed, in fact the guy looked like Burt Reynolds.
This couple were two of the best people we have ever met on a cruise with no airs and graces and were very easy going, I think they were in the Royal suite or whatever RC call them these days, not everyone who sails in the YC or the high end cabins on other lines are snobs.