Lee, I agree.

A website is a very difficult commodity to put a value on --especially one like GWW. Part of the reason there is traffic is because of how it is moderated, and if the site is sold, that would change. There are some that would love to see you sell this site and then get banned from it. :p There are others that would be very disappointed to see you leave. How would that affect the traffic and value of the board?? Hard to tell.
Either way, there are going to be a shitload of intangibles that have to be evaluated to determine a selling price for a domain, and even then that is just going to be a wild ass guess but as long as buyer and seller agree on it then happy day!
Domains sell every day for waaaaay too much and some sell for far too little. I