Not directly related, but in the event that the storage facility needed to move your boat a lock may be a hindrance.
Thinking fire, broken water main, flooding etc.
Insurance is better than a lock IMO.

I use one when it's just sitting in my driveway saying "steal me" but behind a locked door it's of no value IMO. My battery grinder will take care of any of these locks in a minute or less, especially if it's inside and no one is watching.