We already had good computers and monitors, so fancy mechanical keyboards were the #1 purchase for most people. The mechanical keyboard fans nerded out over different switches and other hardware, spending countless hours doing research and trying out different types of keys.
And then slowly nearly everyone went back to regular old keyboards. There were a few die-hards who stuck to the mechanical keyboards, but most people eventually realized that the mechanical keyboard experience didn't really live up to the mechanical keyboard hype.
Some people love them, but the narrative that mechanical keyboards are objectively superior has gotten out of hand in recent years. In my experience, the average programmer doesn't really enjoy heavy mechanical keyboards over the long run.
(And before I get buried in comments that we weren't using the "right" switches or keys or whatever, trust me when I say that the office went through a lot of different variations and there was a lot of trading around)