Fortunately, my wife and I have come to an understanding over the last 25 years. Need has little to do with firearms. Guns are to men what jewelry is to women. As long as she gets a shiny bobble from time to time, she accepts the fact that a new gun of some kind might find a new home with me, too.
In reality, when I find I haven't shot a gun for more than a couple of years, it is usually time I found a new home for it and something else more interesting to take its place in the safe.