I used to be a keyboard enthusiasts. I spent a lot of money on various keyboard. Then I got the Kinesis Advantage, and it completely changed me. I have now been typing on the same keyboard for 5+ years. And I probably haven't changed my layout in the last 4 years. It just works so well that I no longer see a need to "find something better".

I think it might be a result of selection bias when you see more "keyboard enthusiasts" with non ergonomic keyboard. When they find their fit with the right ergonomic keyboard/layout, they might not be that active with looking anymore.