I'm mostly amazed at how 7 of the nine coins have "improved" over the years. Especially the 1834 Coronet large cent, which went from a PR-65 Brown to a PR-66 Red and Brown. Wow! This stuff was pointed out to me by a friend on another forum. As far as the "market" goes, it's my opinion that it will continue to cater to all of us. As long as there are buyers for slabs, there will be a market for them. As long as there are buyers for coins; well, you get my point.
Yes - you are reading it wrong. My comments were intended to show that I think much like you do in that I prefer the sets to be fully original and in the case of issue.
It's quite easy to understand how the grades changed - once you understand how market grading works. And no I'm not saying I agree with it - just that I understand it.
Oh, I understand how market grading works. I don't understand how a Brown coin becomes a Red and brown coin.
It's the same as with the grades themselves - the standards changed. It is now acceptable to most of the grading companies to designate a coin as Red/Brown as long as 5% or more of the coin has original red color. That percentage used to be much higher.