You have my tits too much in a wringer to figure out that triple negative, Des.
I guess what you're asking is what's so great about these three to give them grail status over others that might get such due for some other reason?
1. They each have a "mystique" that goes beyond access... due to word of mouth, magazine rankings, availability of many pictures, books being written on them, and in the case of Augusta, a rich tournament history that surpasses nearly every other course in the land...
2. By all accounts from anyone playing them, they are a joy to play and to be at - the ambiance inside each is reputed to be wonderful. Snapper soup at PVGC, low-key cabins and welcoming treatment at Augusta, beauty beyond compare beyond the welcoming feeling at Cypress....
3. Sure, each would make for some fantastic stories to tell the friends back home.
So I'm sure you're not going to learn anything from this... and depending on one's status in life, none of this might have any meaning...
For most golfers though, all of these things do have meaning, in a big way.
I've been to one of them and the memories from there are among the most cherished I have.
This is all very emotional and personal though, and I don't expect it to matter to everyone. Again, if it doesn't matter to you, that is very fine.
TH