An audiophile would spend more than $25k on a pre-amp, amp, and two speakers. A single speaker cable might cost more than $1000. $300 headphones are vastly better than $30 pair. That is a difference an untrained ear can hear. However they don’t even scratch the surface of high-headphones much less something an audiophile would purchase. A pro level reference headphone might be in the range of 2 or 3k. Pros can hear the difference and properly identify characteristics. A 10k or 15k headphone? Many would conclude that the unbelievable pricing of some ultra expensive audio is snake oil because claims are subjective/unsubstantiated and the science behind them are flimsy or nonexistent.