Would like to dis agree, many jdm 660's r available in the market with Auction sheets of 4 Grade and they r selling in the market price bracket, a jdm Alto 2011 4 grade costs 950k which is the market, without auction sheet ones of the same model r selling for 875k-900k , Mira E;S 4 graded goes for around 1100k while the accidented ones r as low as 950k-1000k , I have bought many 660's with verifiable auction sheets that too at market price even and all the 660's running in my family r with Auction Sheets