A big part of the problem may be economies of scale.
Back in the 70's, everyone that listened to music at home, owned a turntable, arm and cartridge. There were hundreds of companies making cartridges at all price points. The skill for building cartridges was more widespread and parts were mass produced.
Today, cartridges, especially MC, are a niche market (inside a niche market). Getting parts made, skilled assemblers, skilled designers, etc is quite a bit tougher, and therefore, more expensive.
Now, I am not saying these are the only factors, but I am sure they account for part of the high prices.
Back in the 70's, everyone that listened to music at home, owned a turntable, arm and cartridge. There were hundreds of companies making cartridges at all price points. The skill for building cartridges was more widespread and parts were mass produced.
Today, cartridges, especially MC, are a niche market (inside a niche market). Getting parts made, skilled assemblers, skilled designers, etc is quite a bit tougher, and therefore, more expensive.
Now, I am not saying these are the only factors, but I am sure they account for part of the high prices.