We belonged to a country club one summer. It was insanely expensive. They waived the initiation fee that was $5,000 because they were having a huge membership drive. I think it would have been $10,000 for a golf membership. We were only social members, not golf members, and it was still about $200 a month (we just used the pool and went to social functions; I think we could use the tennis courts, too). It was much more expensive for a golf membership. I got pregnant at the end of the summer, and we dropped our membership to save money.
I agree with the others, check around wherever you can. My youngest is a golfer, but I don't want to pay the money for the country club. Instead we have him in various golf camps and golf lessons at another local golf course. It's still pricey, but not nearly at expensive as the country club. Good luck! I hope you find something that works for your son. :)