I personally don't see myself spending more than $20k on a movie poster. I think that would be my limit. Anything above that and I would turn to fine art. It's a personal preference, and I understand if it's not shared on a poster forum, but if I'm going to spend that kind of cash, I will not spend it on printed paper. For $20k and up, you can start finding some interesting (and unique) drawings or paintings, nothing out of this world, but if you're savvy enough, you can bet on some emerging artists, help them out and hope that it turns out to be all it can be. It's a gamble, but it's a gamble I'd much rather take than invest $200k (or whatever it's worth) on a movie poster with an ugly character (IMO, of course) that may or may not mean anything to future generations. Beyond not wanting to dismantle a collection I took years to assemble, it is another reason as to why I would never trade everything I own for one single poster.
T