I was thinking more about it, and I have to say you should keep both. You've already paid for them (even if on credit, not my business either way), and once a handgun is in your house, ammo is only real expense involved. The only gun I ever sold, I had to, because, yeah I had it, but it was a 17hmr rifle, so I'd have to buy nice rings, and a good scope, and yet another caliber of ammo, a gun that I won for free was going to cost me $400 just to put a round through it. You're obviously already set up for 9mm, and it's not like if you currently shoot 200 rounds per outing, you'll now be required to shoot 400. You'll still shoot the same round count, just split between two guns. If anything, keep them both through the winter, by then you can decide you shoot more, or better, consider any $$$ loss to be a rental fee.