2,000 rounds? and you have more? You are prepared!
As far as selling something I regret, it is hard for me to recall anything right now. If I had to pick something though, it would be my old 1997 Ford Explorer. It was nothing special as it was factory basics. Owned it until 2008 and had to sell because we were going to live in Japan. I treated it like a baby though, and it returned the favor. However, I wouldn't have my Silverado if I kept it. Love my Silverado.