Around here the cost varies. There is a club not too far from me and about $1700 gets you unlimited golf. The place is ok, but always packed so no rounds under 5 hours. Other courses (like mine) are about $3K and a bit nicer and many rounds under 4 hours. A few are $10-$20K or more to get in and with more bills to come. Gorgeous places that make the rest look like shacks. I can’t see paying that when our season is so short, but I am not in that tax bracket.
My FIL belongs to a course that was around $150K to join. Gorgeous clubhouse with everything you could want. There are nearby places that cost more than twice as much join. That’s Scottsdale though with year round golf and your club members are retired athletes, CEOS, etc. That’s another world.