We have the one gun/month law here in CA. There are some exceptions, but if my handguns ever get stolen, it would take me a long time to replace them and many are no longer even on the CA approved list. This is probably my main reason for keeping them in a safe.
I've been thinking of getting a safe, more for fire protectino than theft. Boy, if I ever had a fire, and all my ammo started cooking off, they'd have to evacuate every house in a five mile radius.