I think that $600 for a very lightly used 28-2 is a real decent deal.

Lots of revolvers and rifles that get purchased, fired a few times and then basically forgotten as owner goes on to other things. The shooter types here are the exception not the rule. I would be willing to bet that the vast majority of gun owners actually fire less than 50 rounds a year TOTAL, rifles and pistols combine. Even the majority of hunters buy a rifle, sight itt in and then just take it hunting every year and a good many of them don't even bother to check the zero before heading out for the season.

Many handgun owners buy a hand gun for defense or because they liked it for some odd reason. Take it out fire 1/2 a box of "expensive" ammo, find its not easy to hit anything with. Then in the draw it goes to set there.

Wouldn't surprise me to find that over 50% of 25 year old guns not owned by the military or law enforcement have a round count below 50 for rifles and below 100 for handguns.