One of the things to take into consideration is the "value" of our vehicals A,B,C,E body is subject to desire. In 20 years a lot of us will be gone, our kids dont want our old "junk", gasoline might not be available, so what was a $100,000 car in the 2000s might be a $1000 car in 2040.
Heck the eco warriers / progressives might not even let us drive them on the roads.
We have an upright piano from 1900, you can not give them away, maybe 20.00 scrap value in the cast iron harp.
At one time people would pay good money for them.
I do agree if you can do the work and plan on keeping it then it might make sense.