I actually got away with that one.
For when you're not able to get away with it, have this one up your sleeve: "Yeah, I know that guns cost more than shoes. But do your shoes go up in value? When's the last time you saw me giving my rifles to the Salvation Army or trashing them?
We gots to help each other.
Alternatively, "My rifles will last me the rest of my life. You'll replace most of your shoes by this time next year."
Have to keep quiet, though, about what it costs to feed the rifles.