I have 7 shotguns. 6 are for bustin clays and hunting ducks. One is a rifled barrel 12 ga TC Encore, for deer hunting. Never thought about pairing up handguns unless I could hunt big game at the same place as ducks. Then it is always a Ruger Redhawk 44 mag regardless of which shotgun is in my hands.
But I never stop someone from using their own excuse to buy a new gun. Like you said, can't have just one.
You can't fix stupid....however ignorance can be cured through education!