It all comes down to what the individual wants in a car, it still cost them same to do a Hemicuda compared to a M46 Barracuda, the difference in cost is the Hemi engine parts in all reality, and if it had a Saker hood of course, any specific Hemi parts cost more, but the body is still a Barracuda in both cases.
I think that M46's will get rarer and rarer as time goes on and have more of a following once more people realize how rare a car these cars are. Also like you pointed out Alan, this is a 318 M46, it is more common in an M46 than others, Josh has a big block M46 already, so he would have to decide if he wanted this in his stable or not. It all comes down to dollars and sense.