I reckon the El Camino is a valid comparison, a 2 seat ute with some collectable status. I think it is actually a more valid comparison than comparing a Sandman ute to a van.
To me it is no different to a Monaro vs Camaro comparison. Right now thete is a beautiful 1970 Z28 for sale on carsales, I think it is $65k. For a HG GTS350 in the same condition you'd probably have to pay $100k. The Z28 is pure high performance, the HG has the driveline from a far lower spec 1970 Camaro. I think that is a valid comparison too.

I guess i'm looking at it from a value for money perspective as much or more as a parallel between the two.