If it came to the JBTs going door-to-door, I would rather find a used portable gun case at the flea market, cover them with grease and bury them in the back yard, than ever register them.
When it's time to bury 'em, it's time to dig them up and use them.
That's not to say that having a few caches, here and there, might not be a "Good Idea", if registration is required. But when they start breaking down your door to come get them... Well, they might not come to your house first, giving you an opportunity to retrieve any you've salted away, and put them to the use intended by the founding fathers.