I don't intend to preach to anyone to "follow my lead" but I still would like to have my say...
It seems to make sense to me to consider the big picture. In this scenario, it's a pre-Model 34. Quite often in the same conversation, it tends to be an old service Mauser of some random descent or perhaps a surplus Springfield or well-used GI 1911. I simply do not get myself worked in to a frenzy over such things.
Fact is, things were different. In days gone by, folks didn't generally think or "look ahead" in time to see how the current things they had might become glorious aged relics from a day gone by. In the current time, they were simply items in great supply and brand new items that seemed to be better were merely a paycheck away.
And just as things were different back then, things are different today. We would think nothing, absolutely NOTHING of taking a Dremel or a soldering iron to a Glock. Of course, with our background and history in the rear mirror, we simply know that a Glock could never be a dreamy old relic from a day gone by that ends up in limited supply. But that's because we know how many they've made & sold and we know (because of TODAY'S manufacturing abilities) that they can (and will) make 15,000 more of them before I can enter this post.
Folks didn't think that way in the 50s or the 60s. You would order a GI M1 Carbine from a men's magazine for twenty dollars. If you wished to carve your SSN in to the receiver, it hardly seemed to matter. If you had a regret -- order another! For like thirty bucks more, you could grab a Garand at the same time!
I get the frustration at the hacked-up J-frame, more so because the dealer's price. However, the flip side is that the same revolver had -NEVER- gotten mistreated, never gotten worn-down, beat-up or painted. In that case, his price would have been $700 (more, less?!) and you couldn't possibly have justified the purchase. Or perhaps, if the gun were in minty shape... it never would have showed up at a gun show as someone would have it in their fine collection and you wouldn't have even seen it. To take the discussion further... if not for the fact that so many got worn down or beat up... the ones that *ARE* in great shape, and much loved, wouldn't have the same "value." (which is subjective anyway)
You should feel the anger, if that's how you feel. I'm just trying to say that I've gotten past that kind of thinking. Those wonderful things from the past century truly came from a whole different time. It's part of the allure of the fine ones.