Reasons why I have the America the Beautiful pass:
1. Crater Lake NP
2. Yosemite NP
3 Death Valley NP
4. Various National Forest day use fees
5. 1/2 off some USNF campgrounds that are run (over charged!) by concessionaires.
6. Organ Pipe NP
7. Big Bend NP
8. Mt Rainier NP
9. Olympic NP
10. Grand Canyon
I have visited all of the above since I got my annual pass a few months ago, and it has more than paid for itself.