May seem odd, but thanks to my wife. She considers any firearm bought as an investment, if she don't think it will show a profit when sold someday, I have a hard sale with her to get it.
She is very knowledgeable about guns and will mostly ask my opine, but she often strays off at gun shows and buys on her own. She collects Bersa Model 85s in .380 and Model 23s in .22 LR.
And BTW, she is 71 years old and still an avid shooter.