I'm not a golfer but my FIL is. Being retired and living on a golf course, he probably golfs 2-3 times a week... easily 6+ times a month. He would bankrupt a deal like this. I have serious doubts about the sustainability and even the legitimacy of such a claim. Just a quick glance at 2 of the better courses in my town shows green fees to be between $90 and $120. I don't see any way either of those courses would affiliate themselves with a discount card that cheap. Even if they did and offered a steep discount to GreenCard, there is no way GreenCard could profit from a $100/month subscription unless they are also banking HEAVILY on people only golfing a few times.