One of the BIGGEST benefits of using California beaches for your wedding is that there is just tons and tons of room! The length from sidewalk to waves is so long you could easily have multitudes of weddings going on at the same time on the same beach front and still have privacy. That's how much room there is.
The other benefit to California beach weddings is that the beaches are virtually a ghost town at dusk. So, while you may not have a sunrise wedding, you can have the most epic sunset wedding with nary a person in sight!