The sheer number of FAKE 10 10 Black cars has hurt the price of the real ones more than most people will ever know.
There are so many fake Black Z's, most owners have no idea or have choosen to bury their heads in the sands of NEVER NEVER LAND as to what they really have in the garage...
If all of the guys who thought they had a BLACK Z were to go out on the open market and attempt to acquire a REAL BLACK Z the prices would go through the roof, and the scarcity would TRUELY be known.