Yep, Mopars have usually been the red headed step child of the old collector car world! I had a 71 Charger Rt perfect shape in about '88. Mopar guys asked WHY!!???? They said: "Sell that dang thing and get a 70 Cuda"!!!! ha Even back in the 90's , 340 A bodies were not considerd as desirable by many!
Cars come and go. Prices go up and go down. Cycles. Some times in history, Mopars actually sold better than Chevelles and Stangs! So is life!