Thx, but your system seems quite strange - not in this particular case, but in general. Business is still made between 2 seller and buyer. And if the buyer REALLY wants the goods that seller owns he will pay for it. I think it´s very difficult to get 100% sure appraisal of such an abstract thing as domain name (or just "name") is. Still the investitons are few $, but revenue could be even M$ . From my opinion is the only thing that influences final price of domain the buyers "will to pay" and his budget. Nothing else.
But domain names have one big advantage - are uniqe. In the world there could be just 1 domain with the same name and extension. And with every second are tons of domains registered. So theroteically, even absolutely stupid domain should be worth of M$ it needs just time. Few decades and we all will be milionares :imho:
That´s my opinion. Waiting for yours :hehe: