My opinion is Hemmings Estimates are a bunch of B.S.
Dragons that "average" $38,400? That is too homogenous. Is that a #2 car only, or a #1 + ? OK, then how many are sold in a given period to claim that as an average? And where is Hemmings getting that information. For $38K to be an average, and they use a statistical amount of 6 #1 + Dragons annually, then 3 sold for $25,000 and 3 sold for $51,000, right? That's a simplification, but so is their stab in the air of $38,400!
Few are restoring Dragons due to complications and the overall hand wringing trying to over-restore one that happens. [i.e. several coats of primer, hand rubbed between coats with 4000 grit sandpaper, then paint, see above
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I think we have one forum member in Florida restoring 1 or 2.
If you have a 55 Chevy 2 door Bel Air, then you have a large enough "gene pool" to determine statistical averages. But not with a Dragon....