The grandfather comment's argument was exactly that those differences in quality face vastly diminishing returns very quickly after you go beyond the reaches of the middle class.
And even before that: bourgeois attitudes can make a few dollars stretch a lot more. (But on the other hand, having more money lets you get away with less discipline in spending.)
And even before that: bourgeois attitudes can make a few dollars stretch a lot more. (But on the other hand, having more money lets you get away with less discipline in spending.)