Mordante, with all due respect I doubt that you are the arbiter of what is normal. Of those cartridge makers that you have mentioned, only one has passed and his family continues the business. My math is not good, but I believe that represents 100% of the dead cartridge makers that you mentioned having their businesses carried on by their families. But I do agree with you that this will not always be the case.
Looking at the matter in greater depth, many of the artisinal cartridge makers either worked for other companies, Sugano being a good example when he worked at Supex (interestingly I believe that Sugano worked the majority of his career for Toyota), or were watch makers, Andre at Blue Mantis, Ernst Benz and Joe Grado come immediately to mind, but there are more.
I imagine that there is going to be less of a call for watch makers in the future as watches become less prevalent in our society. That probably does not bode well for the future of artisinal cartridge making, though the maker of the Thales pantograph tonearms is a watchmaker and is, relatively speaking, younger.
Then again those making very fine high end cartridges in a corporate environment, such as Ortofon and Clearaudio, seem to be prospering and expanding their business.
Looking at the matter in greater depth, many of the artisinal cartridge makers either worked for other companies, Sugano being a good example when he worked at Supex (interestingly I believe that Sugano worked the majority of his career for Toyota), or were watch makers, Andre at Blue Mantis, Ernst Benz and Joe Grado come immediately to mind, but there are more.
I imagine that there is going to be less of a call for watch makers in the future as watches become less prevalent in our society. That probably does not bode well for the future of artisinal cartridge making, though the maker of the Thales pantograph tonearms is a watchmaker and is, relatively speaking, younger.
Then again those making very fine high end cartridges in a corporate environment, such as Ortofon and Clearaudio, seem to be prospering and expanding their business.

