Loved your description of the class system. There's a general theme of old money wealthy people not caring about vanity purchases because they don't know how much stuff costs nor if that is a too much money or not.
It's interesting to see how luxury brands have different segments of clothes that range from no logos at all to a huge alligator the size of your chest, depending on whether you need to announce to the world that you made it or if you just want to have access to good quality clothes.
Yes, the classic description for a member of the British Upper Class is someone who looks down on people who have to buy their own furniture.
(One classification of "upper class" is someone who has never had to buy their own furniture because they inherit it and pretty much everything else they need.)