My experience through over 40 years has been with cars and I can tell you that we all threw away the stock items in favor of all our supposed those "upgrades".
All those original motors including original intake and exhaust manifolds, steel wheels, air cleaners, canister oil filters, original interiors, etc....
At the time we were throwing those parts away as they had no real value. Today they are gold.
Then the market turned in the old car hobby and all these same guys paying huge money for those original parts. Customizing will always be with us but original cars are KING and getting the most money at sale.
I did that on my Chevelle but kept all the parts (seats/interior, manifolds, Air cleaner, wheels/hub caps) including my original transmission and put my car back to stock and has more interest in this configuration.
When looking for an old truck I was considering some of the customized stuff and like some of it but most of it is hack jobs. I bought original and I can't get out of a gas station, shopping center or anywhere else without someone checking out the truck.
It will be interesting to see if trucks follow the car hobby.
