> is there any advantage (as a Californian) to having a Delaware LLC?
Two big advantages to Delaware:
1. Fast courts. When I last looked, it was 180 days from complaint to decision in the Superior Courts while California took 900+ days. (Also notable, Delaware proudly publishes these statistics. California's were tougher to find.)
2. Developed law. Since most companies are in Delaware, most law is settled in Delaware. Lots of edge cases have been smoothed out. It's also a more business-friendly code than California's.
That said, everyone's situation is different. Consulting with a lawyer is advisable.