I've stopped worrying about the absolute cost of these things, they're absolutely luxury items that are so far beyond the point of diminishing returns in terms of performance/$ that it's not even relevant anymore.
They cost what they cost for a combination of very low-volume manufacture, high-quality parts, R&D, brand heritage, and exclusivity. If you want headphones that perform similarly for 1/10th the price, you can definitely find them from just about anyone, including DC Audio themselves with the AEON RT. I think anyone complaining about the price needs to remember that these aren't about value for money - they're about making the very best thing possible, no matter the cost, and setting the profit margins high enough to justify the financial outlay of something that's not going to be cheap to develop and manufacture and definitely not going to sell very many units.