"Would you insist on NOS spark plugs, filters, hoses, belts?"
A good analogy. Better than you think. NOS Spark Plugs are probably fine, filters, perhaps...
But, 50 year old rubber (aka hoses & belts)? No Way. New is better and safer.
Same with 50 year old NOS Electrolytics. Install them, and You're Rolling the Dice...
LJB