TL;DR...My cat's breath smells like cat food
You make a good point about value once the thrower market dries up. At some point, I see CE very quickly becoming as vulnerable in all weather conditions as it is in the cold. Will collectors still want it when throwers no longer cry that CE is the only premium plastic that flies like the mold's intended and start talking about DX being more durable? Sure...
The more important thing you made (to me) is whether or not the molds that are cherished (and have the most value) will retain their value as other molds dethrone them. Will CE Leopards still be as loved when more people realize how amazing the Patriot is? Considering the explosion of value of Legacy's CFR only Legend plastic, it's possible that it won't, regardless of CE's place in history.
Even with the love people have for the CE drivers, the biggest question is what will/can anything dethrone the Roc? I don't see FR/2FR Buzzzes getting there. I unfortunately don't see the Ghost doing it either.
It really is difficult to write on this subject without feeling like you're rambling. Damnit!
As for the 9X, throw it until it breaks, put it back together as best you can, frame it, and hang it then.