It's like some guy claiming his classic car is worth 25,000 dollars. If nobody is offering 25k for it then it's not worth 25k. Period, end of story.
It's like that 'some guy' selling his classic car to a classic car dealer who was walking by, without first testing the price with experts or posting an advertisement.
There seems to be some kind of breach of fiduciary trust here somewhere, heads should roll at ICANN even if all of this was somehow not in violation of any laws.
Valuation of a cashflow is a very well understood thing. There is literally a button on my calculator that just does it. And a built-in function in Excel.