Glad Shamus brought this thread back to the top. It is an interresting one.
In my opinion, the '60's were the golden years for traditional bows. That is when all the bows I like were made. Many still survive today and give good service. If it has lasted 40 years, I see not reason it can't last 40 more if properly taken care of.
I don't mean to bash the new generation of custom bowyers. They are making some fine equipment, with many new improvements. But it is interesting that, in the '60's, Mass production companies were putting out bows that are still kicking today.
Aside from my later model Jack Howard bows, the '60's model are my favorites.