St Simon's has changed over the years. It's finally succumbing to development though they are being careful about it so as not to kill the golden goose (a very private feeling island). Most of the people that lived there prior to its rise in popularity have been driven out by high prices or cashed out if they were lucky enough to own land. The Eastern part of the island has become much more accessible to lower income populations. (edit: I've got this next sentence wrong as corrected in a comment below)Rich homeowners, as a result, erected a guarded gate in front of Sea Island (basically part of SSI) to keep everyone out.
I still love SSI. My only hope is that it doesn't continue on the path it's currently on. Privacy and exclusion are separate ideas. SSI can still be private, but it doesn't necessarily have to exclusive. My hope is that can change. However, my head tells me that everything I like about SSI is scarce and prices will only continue to climb, driving away those not fortunate enough to afford it.