That's how it was a decade ago on the east coast as well, when I went through it (tangentially, admittedly).
5-7 well adjusted folks who are looking to act for attention (nothing wrong with that, to be clear), 25-30 folks who feel weird in their own skin and see drama club as a way to bond with people like them.
At least in the Bay Area, Drama Club seems to be a safe place for socially awkward teens.