Good morning fasteddy, you were correct in not paying full price. As far as any collector's value goes it's been inappropriately tarted up with a "funeral gun" hot blued finish and gold plated triggers. I only hope that the barrels weren't hot blued or you might have future rib separation issues.
I had a .410 NS that was given the same treatment (except thankfully they left the barrels alone). I bought a small bottle of Testors gold paint at Hobby Lobby and filled in the engraving so that it looked like gold inlay and it didn't look bad.
Steve