As far as I'm concerned, the optimal size of the economy is when everyone can have everything they want.
Until then, there's work to do.
Until then, there's work to do.
Some of what expensive real estate buys you is the _lack_ of other people.
It is also typical of a famous writer and a very high status person not to see that others would want/have to compete for status in other areas. Not that she is wrong, but the world is a complex place than one can imagine.
You have a giant industry trying to change your wants, making sure you are not satisfied with what you have.