Adrian,
I feel just the opposite with respect to the "better" or higher quality course failing.
Those clubs with "THE" quality product will survive.
I don't see the Pine Valley's and Seminoles of the world going under.
I don't know why you associate better/quality courses with expensive courses.
Some of those better/quality courses are fairly inexpensive to belong to.
It's getting in that's the difficult part, not paying the annual dues.
Newer clubs, where the acquisition and construction costs were high, are at risk, but, the older, better/quality clubs will survive.
Location and demographics have a lot to do with survival, but, again, if the quality of the product is outstanding, those private clubs will survive.
I think destination resorts and destination private golf clubs will experience a good deal of difficulty.
I love Bandon Dunes as I did Pinehurst many years ago, but, it's remote and difficult to get to.
I certainly hope it continues and prospers.