Are A bodies more popular than B bodies?

I don't think they are. The problem is most B bodies are either not for sale or they're so expensive most people can't afford to buy and complete them. I've seen shells of '69 Chargers sold for 12k and they're completely rotted out. I think most people just want a cool old Mopar and are at a point to they don't care what it is, just so long as they can afford to do what they want with it. But I do agree, many A body owners aren't as "particular" as B body guys.
RammerJammer75, you nailed it on the head! The reason I have a dart is that I can't afford a B-body! if I ever win the lottery I will be shopping for a 70 Roadrunner.