I want to say how much I agree with
@Kate re:
"Domainers are not objective and tend to overestimate the quality and desirability of their domain names. In general, they are not as good as they think. That's why they are not making sales."
It is a natural reaction, but one we should all realize, and that
applies to both newcomers and those who have been in domain investing for many years. Now I do realize that the intention was (I think) for new domainers without yet sales, but I think really it applies to us all.
It is natural to think names we have acquired are more valuable than they probably are, and some domain names are over-priced or stubbornly held, for this reason. People do the same thing in stock picking, mutual fund selection, etc.
I have increasingly found it helpful to ask 3 family/friends who know nothing about domain names what they think of a name. I know, not a scientifically valid statistical survey, but if all say 'huh?" it does help me temper my excitement for the domain.