All gonna have the same age caps

Compare it with cars, same thing if your 80s car has bad rubber mounts, bad shocks, etc.. from age/use and its all stock factory. Not going to change if you replace it with another 80s car with all the same stock parts. (not replaced).

So replacing the shocks/rubber mounts, etc that age and cause problems in an 80s car to make it new again, is the same thing your doing to an 80s early 90s analog board by replacing its caps.