Years ago when car was a luxury item buy a new car and sell it 1 or 2 years later gave a profit, today car is no longer investment, Dr. Fang Bi an did the same thing with the HPs, he democratized the planar technology.
Iam grateful to him for having made such a modern sales policy.
His dynamic model HE350 yet available at Massdrop even have a 50mm speaker, the same size as the expensive Seenheiser HD800 at a fraction of the price.