You will also note just how effective he placed 4 groups all as 1st tier to 4th tier all in relation to price. He did not seem to get a negative response from readers using price as his method? Still he also shows which headphones excel at each genre with some expensive headphones not doing all genres.
The assumption is that the more expensive headphones are better. Still metal listeners are a little different and seem to be easy going and will follow at times. You would read about the opinions that some headphones are a great value for what they are. Still no one questioned the more expensive being better and top tier.