Curious Why Benz Micro Slid Into Obscurity

I remember there was a time when Benz Micro was one of the more prominent cartridge manufacturers out there. The Ace and Glider sure were popular cartridges. Then there was a hiatus in production. The company recognition seems to have never recovered. There are still new cartridges for sale on the various sites. But none of ther upper tier cartridges seem to gather the same recognition or praise that the earlier cartridges did. 

Is perception of them changed that much, or is it the fact that the brand has aged out? Are the designs that dated to where people no longer believe quality and value are there?