I assume you're thinking about the earthquake risk. We haven't had a major quake here in a generation, and people have short memories. The San Andreas fault exists day-to-day as a pretty chain of lakes.

I'd also count being in a place where the mountains meet the ocean as a plus, as well as the golden gate (the waterway, not the bridge, though the bridge ain't half bad, either). And a few hours away you've got Big Sur and Yosemite.