The maintenance and upkeep of a golf course demands significant expense. The sheer size of a golf course (on average, 75 acres) demands no small amount of crew and equipment. But, not just any crew or any equipment - specialized groundskeepers and specialized equipment must be used to maintain a stimulating and beautiful tee, fairway, green, as well as bunkers, water hazards, etc.
Public outdoor tennis courts also require fees which are allocated in part to maintenance and upkeep. However, unlike a tennis or basketball court, grass on a golf course continues to grow, as do weeds, trees, etc, which must be continually and regularly trimmed and kept in order to maintain a clean course. Also, families of local fauna must be kept in check, because while squirrels and foxes can make for picturesque scenes, skunks and raccoons can't be permitted to take up residence.
Quality grasses, soils, flora, and a high degree of ever-changing technology requires that a golf club can't really "go cheap" and expect to remain profitable.
That is interesting to know. I did not realize that it can be very expensive to maintain a golf course. I would not go the cheap way If I owned a golf course and decide it was time to do maintainance. Thanks for the info.