Many other brands are overprices as well, e.g. Revel Ultima Salon 2 etc.
A guy tried to sell Raidho D1 on agon for $7500 but he was unsuccessful.
Many people are sheep and they should be shaved by dealers and magazine "reviewers". When I first heard D1s and when I heard the price and looked the face of the dealer full of himself, I spit on the speakers. They were no anywhere close to the price. Right now, if somebody buys D! used for $5000 it is overpriced. He won't be able to sell it next year for $4000