I guess it may be me that is over thinking this...... Ultimately it's up to the owner to decide what and how to build his car. I forget that the looks of something can mean a lot....I should know that as I sell parts for other vehicles based on the fact that they are and look like the proper parts!
I drove my car a lot......(miss it a lot....) and when pieces fell out of the a-arm when I removed them (both sides!), I was shocked! It was literally one good bump away from who know what kind of a "hold my beer" moment. But seriously, it was bad enough that the early cars were known for simply busting the ends of the a-arms off completely! Hence the two-three different revisions as time went on! To have the ball joints self destruct doesn't give me a feeling of confidence. I guess that was the cautious safety inclined me.
But today, as the values of these cars has skyrocketed, I can understand where actual original parts have a place in a car that will likely only see road duty on and off of a truck/trailer and around the grounds of a car show. 
Carry on!
Kind regards,
Steve