It's understandable that Powder Keg did so well with it being brand new. As with most things, the majority of people don't really care about the things of the past, they only seem interested in whatever is the newest or fastest or tallest or whatever.
I personally think that people could learn to have a greater appreciation for coasters (and most other things) if they spent just a little time learning about the predecessors of today's wooden and steel behemoths.
Also, I realize that, with all the great content that TPR offers, bandwidth is at a premium and also the lack of usable footage of past glories makes making a video of this type appear to be an effort in futility and perhaps it is when you consider the possibility of the lack of positive response that it might get.
If nothing else, hopefully it's an idea that will remain somewhere in the back of your collectively brilliant minds, and perhaps, at some point in the future, you will have enough footage and the coaster community at large will have enough interest for you to produce such a video.
I want to thank you both for all your hard work and dedication to TPR and I look forward, with great anticipation, to all of your future efforts.
Keep Up The Great Work!