I'm in no position to determine who is "some" as compared to "most" here ... but the world is an ever-changing environment, and in my travels, I'm encountering younger audiophiles who are as smart as ever, and want to know more ... preferring to asking pertinent questions before throwing cash ... they question the status quo as they should. Our generation should be more aware of the next generations requirements, whatever avenue that may take ...
This is possibly a call to separate what goes on in forums against what happens IRL. Forums inevitably preach to the choir.
A car forum is likely to obsess and discuss things like tire specifications. I know of a Porsche launch where they invited three of the most fervent Porsche enthusiasts on the forums, who seemed to know more about Porsche engineering and performance than most Porsche engineers and test drivers. Two of them were too young to drive. Whereas, a lot of people who buy Porsches know a fraction of that kind of knowledge. They just like the idea of driving a Porsche.
This forum has an exceptionally high degree of understanding of the topic, which is rarely exhibited beyond a forum like this.
Head-Fi has the same. There are a lot of people who really, really know their way around headphones, headphone amps, DACs etc. Not everyone has or wants the same core knowledge. Hence... Beats!
As I said, it's a broad enough topic for there to be a space for those who want to understand the topic, and those who simply want to buy something good to listen to their music.