Solid headphones

So, I'm listening to the K702 65th Aniv cans, through the ECBA, and they're not bad. In fact, they're mostly the same as the regular Q/K701s, with a little more bass extension, less grain (likely better THD numbers), and cooler looks. They probably cherry-picked the best transducers and played with the foam in front of the baffle. No biggie. "Evolutionary, not revolutionary" is the phrase that comes to mind. Very solid cans and well worth the $350 I paid. Are they worth $500, which is the typical retail? Sure. There are many other big-name cans out there that are priced the same, or higher, that don't sound this good. So, why not? (Lower is better, of course.) I gave the K701s a 3.5 out of 5 stars, so these are a 4.