+1 on the hassle of selling. Plus it is hard to get what you think something is worth out of it. Outside of my few task specific guns like a carry gun or two, or that AR that is my SHTF gun, I tend to buy guns I think are cool/interesting. Some I rarely shoot and if it was easier to sell, maybe I would (I'm looking at you Hudson H9!). But it is the novelty of a gun that makes it hard to sell too. Do I shoot my CZ P-01 Omega very often? No, but it is a really cool gun that I love and it is a pain in the bubblegum to sell so I'm not going to unless I absolutely had to. And the list of interesting is basically endless! Someday I'd love to have a Regulus or maybe, if I really save up my pennies, in a few years be able to afford that Laugo Alien because, darn that looks cool! Unless they go out of business like Hudson did literally the day after I bought my H9. But I'm sure there will always be something else interesting which brings me back to what many have said above: How many is enough? Just one more.