No I am joking by any means whatsoever and at $600K is not even in the realm. I am talking mega bucks. People in this range of equipment have the resources to indulge as they please. When one gets into this range of gear and the ultimate validation of the musical experience to be heard.
Believe me these folks are not trying to impress anyone, they know what they have and what it took to get to that point. Most are in the entertainment business, and indeed have a fine ear to evaluate recorded music. For them it is not dollars spent or to impress anyone. Although there is a pecking order among the elite, it has nothing to do with something as mundane as an audio system.
But most of these systems are custom made, by some of the most gifted designers in the business today. This is not off the shelf units by any means. and the $600K you speak of probably would not buy the speaker cables.
However with that being said it is subjective on how one perceives sound. While one may be very happy with what they have and would not trade it for anything, then that is good and you have found your comfort zone. I certainly have found mine.
With that being said, there are ultimate,no holds barred systems that defy sonic description, which few will ever hear, much less ever own. And in this case dollars do make the difference or many more of us, would have something of this nature.