FrankenMauser answered the question, but I suspect it saved more than a dollar.
Dave T., how do you think companies stay competive and stay in business except by "cutting corners and costs"? I have an S&W M&P made in 1900. I have little doubt that that gun, made today the way it was then, would cost at least $4000 and it would not be as good or as reliable as a modern Model 10. I doubt you would like to assemble that 1900 gun, with its tiny springs and microscopic pins, and if you had to do it you would want a lot of money to make up for the eyestrain.
So you can lament the passing of those old guns, and I agree that they were works of art. But I prefer to have guns I can afford, not ones I would have to admire from afar.
Jim