It seems like a really good idea to go the Mad Max route when society becomes unstable. I've seriously considered it myself, buying all these weapons, storing 50 gallon drums of dried rice and fresh water for the Zombie Apocalypse.
But then you have to ask yourself: Are you really going to shoot people over a can of beans and a bottle of water? And do you really want to go on living when there's no longer any real joy in it, when all the little luxuries are gone and you're always looking over your shoulder for the mobs of brain eaters?
I don't know. Its one of those eternal questions like "what is love?"