I understand that. Hell, I think everyone has done that at some point in this hobby. It just sucks when the majority are flippers and they won't sale for reasonable going rates. There are tons of these UM posters for sale at that expressobeans place, but none of those guys will sale for the going rates.
I usually try to be fair. I had to make up $275 for my Halloween print. That was no fun at all.
I would try to snag a print as they go up for sale to help freaks, but it's already on my account that I bought certain ones. They will cancel my order.