I agree that different people, equipped with different ears (to collect data) and different brains (to process the data), get to different conclusions!
Too often I see later reviews repeating (in different words) earlier reviews, and wonder if the later reviewer is influenced (subconsciously) by reviews he already read himself...
Personally, I do NOT have perfect hearing nor golden ears, and occasionally find myself all alone (or almost alone) with different opinions to "everyone else". Call me an outlier, but I could never understand what people hear when listening to the Utopia... Auditioned it in 3 different CanJams / meets, on multiple HIGH-END setups, and found it anywhere between "meh / boring" to "it's OK headphone" (depending on setup). I would not buy it personally for $1,000 (let alone $4,000)... But, obviously, most other people love that headphone! (as a side note, out of the Elear, Clear, Utopia - the ONLY one I liked were the Clears. Way better than Utopia. go figure...
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So... bottom line, different people hear different things!