Well, all I can tell you is that if you're making $1699 purchases without understanding the terms of sale, then that's on you. Taking issue with it after the fact is sour grapes. Would it be nice if every single company on earth had a return policy as liberal as Amazon? Sure it would. But younger companies often can't afford to have such practices, especially when it's in a product category where so many people would be looking to take advantage of such a policy for the purposes of auditioning the product. Audeze has a dealer network, and if that wasn't a convenient way for you to audition the product, then you should have contacted Audeze directly and asked if they could assist you in arranging a demo.
You'll find post after post after post of people who have found their customer service to be excellent, and an even higher number of people who have found their products excellent. I'm sorry you feel otherwise, but in my opinion the way you're handling this is unfair and immature.
This is where we simply disagree. We have two different visions of people, business and society. You're of the sorry you didn't "understand the terms of sale, that's on you" type and I'm of the Sennheiser type. You are of the type who try to insult a person for sharing their experiences, by calling them "unfair and immature" and you have places like Amazon that cherish customer feedback. You have your vision of the world, I have mine.