I am going to pay for the annual pass before I head off on the bike this spring. I am buying it, although I get SSDI... I don't want to have to explain myself as disabled although riding a Buell. I have the money so I will pay the 80 bucks.
If you hit more than 16 parks with a 5 dollar entrance fee, it will pay for itself anyhow. I plan to hit more than 25 of them on my trip... and just put the pass in the see through pocket on my nerd vest (hi viz vest).
It is entirely worth it if you have plans to do a lot of the National Parks. It does not, however, give you a discount on camping fees, so you will still have to pay up the first time you come in to set up your tent.
Piglet: Because Hogs Are For Old Farts!