Just to clarify, I think you left the word out "some" people in the hobby. No matter where you go, there will always be idiots or grown adults who act like idiots, thats just the sad fact of the world we live in. I know that first hand as I live in an area where people think their bike parts are gold plated and ask prices so high that you want to take the bike part and hit them with it. There are some here who have only been collecting for a year or so and want to learn from the best, and there are others who look for any chance to exploit the hobby. Somewhere in between all that is the average Joe who finds a bike somewhere and wants to restore it to it's original glory whether it be for a close relative or for one's self, so they come here and wander the halls looking for information. With the exception of the exploiters, all are welcome, which is why I'm here.
I feel that there was a hint of arrogance in the way this whole situation was handled, and when 2 or more arrogant ego's collide, it's a wreck. I think this can be compared to a Pawn Stars episode where a customer walks in the shop with something he knows little about, they call in an expert who says it's worth a fortune only to be told that the customer either no longer wants to sell, or is asking a price out of the league. The disappointment likely turns to resentment.
Honestly, if you have what we all think you have, you would be better off setting a private auction as people who spend that amount of money on "kids toys" don't really like their names out there. Especially if it is a wealthy well known individual.
http://privateauction.com/
Good luck! I'll be watching.