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			I took a quick look on taobao, and the original DPT-RP1 is selling for about 6000 yuan, so the mark-up is closer to 30% than 65%.   On top of that, they probably also have to pay sales tax and shipping and handling fees to get the original devices, which would add quite a bit to their cost.  So, they are probably only making about 20%.  That seems reasonable to me for something that isn't likely to sell very much.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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