Everybody wants one. Not everybody gets one. It's a really, really touchy subject...
If you are handicapped, you can get a handicapped permit and drive on the beach.
And then there is the grandfathered thing. Not legal, in my unprofessional opinion. Its only a matter of time until somebody challenges it in court, but who wants to be "that guy?" Not me!
Otherwise, you keep a 4x4 around for the lottery and apply. Certain folks tend to get selected more often than others, if you catch my drift. There was talk about the county outsourcing the lottery selection recently, but I don't know what ever came of that.