Why is that? Is it becoming less popular?
Maybe. There are still plenty of courses in the area, but they have been upping the standard for what golfers want to visit on a week long get away. Two of them were very basic. One was quite a nice course, but was probably too far away from other good courses so may not have gotten included in many packages.
Glenway in Newmarket clearly had a finite life as part of their master plan. The land is more valueable for homes now and you can see how the design lent itself to adding new streets.