There is always gonna be guys that actually "restore" the original iron.
And
There is always gonna be guys
that toss the original & take the easiest & cheapest way out.
Hell, you can go down to the "Truck Shop" & buy the whole truck piece by piece in cheap Taiwan pieces if thats your style.
Most discerning restorers I deal with will not even consider bolting parts made in the orient on an old America Bolt.
NOS & good used original parts are the only accepted form of parts replacement with this crowd .
Different strokes for different folks.