Thanks for this thoughtful post on and starting this new topical thread.
I think what you’re observing is less about those cartridges “falling out of favor” sonically, and more about how the hobby’s center of gravity keeps shifting.
Most of the cartridges you list were absolutely state of the art (or at least category-defining) in their time: Dynavector 10x5 and Karat series, Benz Ace and Glider, AT OC9 variants, Sumiko Blackbird and Blue Point, ZYX Bloom and Airy, Grado wood bodies. None of them suddenly got worse. What changed was the market’s attention span, price inflation at the top end, and the tendency for audiophiles to move “up the ladder” and psychologically downgrade what they used to own.
A lot of those models occupied a very important middle-to-upper tier sweet spot. As people upgraded systems and cartridges, they often replaced them with options offering incremental gains, then mentally reclassified the old ones as dated—even if the musical gap wasn’t that large. There’s also a real fashion cycle in analog. Brands like Benz and ZYX didn’t disappear because their designs stopped working; they faded because distribution, marketing, and succession matter as much as sound. Meanwhile, companies like Audio-Technica, Lyra, Ortofon, etc. kept iterating visibly and stayed part of the conversation.
On your specific question about the ART20 versus older high-tier cartridges, I’d expect the ART20 to sound cleaner, faster, more extended at the frequency extremes, and to have a lower noise floor. But not necessarily more musically convincing than a well-sorted Proteus or Kiseki OG Blackheart. Many of those older high-end designs trade a bit of ultimate resolution for density, tonal saturation, and flow—qualities that still matter a great deal over long listening sessions.
In that sense, the ART20 will likely sound more modern/contemprary rather than automatically “better”. Different priorities, different compromises. Keeping cartridges like the Blackbird L and Glider for casual duty actually makes a lot of sense—they’re musically complete, robust, and enjoyable, and they remind us that progress in analog tends to be evolutionary rather than revolutionary.
I think the real takeaway is that many cartridges don’t fall out of favor because they’re eclipsed; they fall out of favor because their owners move on (for a variety of reasons), and collective memory in this hobby is shockingly short.
Experience has a sound.

