I have a Series 70 Colt Government Model with an epoxy coating baked on the externals and it's nice looking, but I only shoot it once every 5 years or so. while it's the only .45 I have, I prefer prefer 9mm for a variety of reasons. If I keep the Colt, then I will always have a nice gun I don't use. If I sell the or trade the Colt, I can get another Sig. I will note I already own one Sig 9mm, and multiple glocks in 9mm, and other handguns as well in 9mm. So, keep or ditch the basically unused Colt?