You mean guns have use beyond that!!!!Too many guns?
I guess it's all dependent. I think my brother in law has way too many Star Trek figures. He has one in pack and one out of, and they are all on shelves in one room on the wall. They sit there and do nothing. I guess he enjoys them, or at least he says he does, and they may have investment value. Maybe.
All of my guns, save my newest purchase, have been fired many, many times and have brought myself and my wife much fun and excitement. I plan on getting the new to me 870 this weekend to get familiar with it. I guess if you have so many guns that you don't remember the last time you used one, you may want to evaluate it's value to you and perhaps "thin the ranks." But if you have even 50 guns, and know that sometime in the past year you have fired them all and you enjoy having them, and they all have some kind of use (plinking, hunting, defense, looking awesome at the range ) , then good on you.