Easy for me to say** but there would be zero dilemma for me. I would clean it, lube it and tuck it away.
There are so many 5906's out there, I would throw 4 or 5 bills at one if I were just dying to shoot it.
** easy for me because I have never found any use for an axiom such as "these were made to be shot" and there's some manner of emotion laced
injustice if one owns a gun they specifically intend to not shoot. For the record, these were 100% positively NOT MADE to be shot. That's demonstrably false. These were absolutely made for one reason, to be sold for profit. This one has already lived out that dream, exactly as S&W hoped.
** also easy for me to say as I have a 659, a pair of 5906's, a 915, 639, 469, 59, three 39's, and others I don't need to add. So owning and specifically not shooting a 6590 would be zero difficulty level for me.
All that said? I have never had any issue with folks doing whatever they wish with their stuff. If you own it, enjoy it however you will, even if that's following some silly idea that "it must be shot!"