Shoot it, for sure. Investing in guns is gambling on the chance you will be able to sell it in the distant future, and that money will be more important to you at that time. The money you make will be used for what? Buying gas to burn in your car? Buying a few months of food? Taking a weeks cruise? But there is also the possibility the gun won't be worth as much in the future, due to changing laws or peoples whims. Or you may die and never use the money. Or inflation will make money worthless.
Is it better to "gamble" on some future gain, or to carry the tool to a range, or out in the woods, and enjoy the way it feels and shoots? Otherwise, buy a prop gun, or a framed picture. I've been going to gun shows and antique shops my entire life. Trust me, life is short. Those places are filled with previous generations treasures, sometimes I see dusty 2nd Gen SAAs sitting on a table with an 80yr old guy selling. He let that beauty sit in a dark safe for a lifetime, and is now selling out. Just doesn't seem worth it to me. Do I take extreme care not to excessively wear my good guns? Yes, but I don't leave them unshot.