It's not about the price alone, it's overall, what do you get for the price tag. When you consider the pros and cons and make the decision.
in US you get it for $550, whereas in EU we get it for $725 to $800. So will you spend those money for something if it doesn't check most the boxes you need to justify such prices? You've been quite spoilled in US getting those devices "cheaply" in comparison to the rest of the world, so yes i won't spend $800 for these headphones unless they really worth the price.
I don't question people's ability to buy things, that's good for them, nor I'm jealous. I just question how much they value the money they spent for such thing, that's all.
You can take my sarcastic comment as negative as you like. That's quite positive of you indeed

The rest of the reasons are debatable and very subjective. For someone who doesn't value his money spending, he/she won't need to justify it, it's done. The same goes for someone who does value.. Every coin has two sides and here we're expressing the different POVs.