Great find! I think it's also an interesting commentary about the desirability of Forwardlook cars in the later 1960's through the 1980's.
This Dodge should have sold new for around $2300-$2400. Only being worth $375 5 years later is barely holding 15% of it's value. It could also be assumed that, being sold by a dealership, $375 was the premium/highest market price.
Imagine if a car today lost 85% of it's value in 5 years. A 2010 KIA in #4 fair condition will still hold about 30% of it's MSRP value.
I think about this everytime I see a post from someone complaining that an old car was allowed to sit outside and rust. I'm always amazed that any survived at all!