69 cuda for 74 roadrunner????

Muscle cars lost value in 71-72 when they lost h.p. because of the smog laws. That, and the big, stupid bumpers they have always made them less desirable than their "forefathers". There was once a time when nobody wanted them and you could pick one up for a song. Only because the "good" cars are becoming so valuable, are the later ones selling.
Myself, I'd NEVER trade a 69 Cuda, (muscle car or not) for any car of those later years.
The ol' .02 cent thing...