Nice post.
I think it’s a little too soon for the gamer-audiophile market to emerge. Hardcore gaming became a thing with Generation X, while high-end audio is the realm of an independent hardcore audience and spendy retirees (currently Boomers and before).
When I was in my prime gaming buying era (prior to age 30 in my case), the thought of spending more than $100 on headphones was neither possible nor a priority versus the many other things I wanted and needed. Only a small percentage could/would pay $899 for any headphones at all.