"Graveyard Carz"...any fans here?

Something interesting that Mark has mentioned several times; he says he does not normally do A-bodies (unless requested by a customer) due to the fact that restored value is just "not there" in comparison to an E-body. A little research seems to to agree with this basic premise; restored B and E body cars are bringing in well into the six figure range, while even the finest original A body resto might bring you as much as 40k...but only if it's a perfect numbers-matching concours resto...verage value of a nicely done A-body resto is generally only around 20k. Any particular reason for this? The A-body musclecars were some of the greatest sleepers ever built.