This isnt just a BMX problem,have been involved with classic cars/bikes for many years,and last few years exactly same issues,dealers masquerading as private sellers,inflating prices,shill bidding on Ebay,bottom line is you pay what you think its worth if you have the sense to do so,leave the OTT bidding to others.the big difficulty is when something is soooper rare andu really need it,then iguess you have to just put on the beer goggles and bid away....lol..oh and not tell the missus!!!
The bibble will burst one day,and probably the demand too,so i guess in time things may be a bit more sensible.....
Keep it real!!
Matt