FWIW, it looks like half of the prices were within $10 to $100 USD, the bulk of the rest were >100 and <1000. About 1 was <10 and a few were >1000. I don't thi

FWIW, it looks like half of the prices were within $10 to $100 USD, the bulk of the rest were >100 and <1000. About 1 was <10 and a few were >1000. I don't think they're measuring the wrong thing, although a human might be interested in more things than frequency response. Just goes to show that perhaps the most important thing in selecting headphones is comfort and the context in which they will be used. For "audiophile listening experiences" an equalizer and CA-style cans might be a good idea and give a lot more bang for the buck than shelling out several hundred just for the cans.