Highest detail cartridges

 I sometimes envy your level of absolute certainty about your cartridges and what you are hearing. I on the other hand am always a skeptic. My point about the grado was precisely its age since manufacture, not its hours of use.  My TLZ, which used to be my favorite cartridge 30 years ago, deteriorated while in storage in its black cylinder. As to the excellence of the Acutex cartridge, get yourself an Acutex LPM320STR3, or M320, and then we’ll talk. My remarks do not pertain to any other Acutex models. 

My memory is not that good, i'm sure it will be impossible for me to remember in 2048 how good or bad was one of my cartridges in 2018. 

But what i know for sure is that some of the best cartridges does not get old and still circulated between collectors and audiophiles. People who're looking for fidelity buying 30-40 yeard old cartridges because of the sound quality. FR-7fz does not get old, because it has sealed suspension which never fails. 

Maybe i will find the Acutex, one of them is on ebay now, but i don't like the design of this cartridge, reminds me cheap Ortofon OM series. 

@chakster 

2048??  Yikes.  I hope I make it that long but doubt I would remember which way the table rotates by then, much less be able to see well enough or stop the shakes to cue an arm.   ;-)     

I do not listen analog anymore.   But,  when I used to sell audio I auditioned one I will never forget.  If detail is what you want?   Hands down.  Decca London cartridge.  They can be a little fussy with certain arms. I was able to hear the snare buzz on Charlie Watts snare from sympathetic vibrations with other instruments when Charlie took a pause.   It was an eye opener. That you usually only hear in real life.  Just Google - Decca cartridges

The Dynavector  karat 17d3