There is a new comer in the BMW motorcycle parts arena that has outrageous prices. I keep expecting his prices to fall but think his game is to out wait everybody else. I guess there is no way around a seller asking anything he wants. (1 example. He has push rod tube seals that sell for about $5 new starting at $25 for a pair, used) This stuff is a waste of time and band width.
And he's not the only one. others are doing this nonsense.
I think the only solution might be to have a feature on the search engine to exclude sellers you don't want to trade with. Is there a way to do this? Any chance Ebay will make something like this work?