A word from the alleged (Copyright: Paul Coggan) Mustangophobe.

People who
know warbirds and history know the Sea Fury. Most
anybody 'knows' the Mustang.
That's why there's a bigger demand out there for Mustangs - and that'll remain, over any other type, because to the wannabe warbird millionaire it's the only 'old' fighter he's heard of. The same applies to the Spitfire in the UK (and Commonwealth to a lesser degree).
From here "it's do you want what everyone else has got, or do you want something exclusive?" For some, a Mustang is exclusive in their social group because no-one else plays with the old junk. For anyone in the warbird biz, to get interest traction from anyone who knows warbirds, you've got to have a quality restoration or something else special about it. Of course those with easily massaged egos, there's enough gee-whizz from the hoi-polloi not to need to worry about guys and galls who babble about "other 'planes."
Furies were / are cheap because there was an over-supply on the market - as a result they became the real max-fighter min-cost warbird for a period, perhaps also helped by the Reno racer profile.
More seriously for a moment though. What remains scary is the massive drop in warbirds operational once you get past the N American products. Mustangs are the only W.W.II era frontline combat type (warbugs acknowledged and excepted) operating in numbers over a hundred, most other fighters vary from Spitfires floating at fifty to anything between a dozen to ones and twos. The same applies more acutely with heavier types.
I haven't run the numbers recently, but I doubt that if you added up all the other US W.W.II frontline fighters together they'd add up to the number of Mustangs flying - maybe a few more, but certainly no other one type is flying in half the numbers Mustangs do. That can't be right, from a historical point of view?
Formations of Mustangs are an airshow staple worldwide, formations of
anything else are a news item.
Each to their own, but a world with just D Model Mustangs would be a pretty dull one, I suggest.
Regards,