I ran across a 1976 vintage 4" blue Diamondback. It's cosmetically pretty rough. No pitting, but much blue wear/loss. The action is tight, with no end shake or excessive movement from side to side with cylinder. The lockup is tight with no push off. It's priced below $700, but I would be more comfortable below $600 due to condition. My question is: Would it be worthwhile to send this back to Colt for refinishing, or does Colt still do that? If so, what do they charge to re-blue a gun? Normally I'm not one for refinishing guns, but this one would definitely benefit. I would rate the overall finish at around 40-50 %. If I was able to purchase for say $575.00 and have it professionally refinished, what would it be worth? I know these are a lot of "what if's", but I'm just trying to determine if it would be worth the investment, given the crazy prices of "snake" guns these days. I would be looking to have a collectible shooter, hand me down someday. My son has already laid claim to my Python, so this might be a good choice for my daughter someday.