This is also why I love DIY. I live close to a high end audio store that carries Mcintosh, Wilson Audio, etc. I've heard Alexandrias, etc, and am amazed by the sound quality, engineering and designs developed by these companies and their incredible attention to detail. However, I am not a person that is in the habit of dropping $250K on an audio system. Nice to know with little sweat and hard work in the garage can get you a system with such an incredible value for a relatively modest investment (I know DIY can still get extremely expensive, but I'm simply speaking in relative terms here). I got a very small taste of that with the THT. Sure, it has it's limitations, but it was a lot of fun to build and I am extremely happy with it. Anyway, sorry to get off topic.
Still reading up on all these designs. Good stuff, guys.