you could actually say that because the 67-72 are the money cars ....meaning they are worth the most.
I hear early A guys say they like their early cars because the value is low and the cars are easily had for cheap ......then 67-72 we get really expensive cars .......then 73-6 we get the same effect as the early stuff in that they are not worth much and can be had for cheap like my 500 dollar 75 dart LOL