I think sometimes,and I am guilty of this as well, people tend to
fail to consider "what am I registering this domain for". i.e. do you
think its a good brandable name, is it a name that will get lots of
hits,am I going to sell it ,am I going to us it myself ?
You see the types of domains that you have registered really
will not be brandable and I guess would get very few hits
(you could use Overture to check how many times people have
searched for that word/term).
In short you have to have to have in mind the purpose of domain
before registering it.
DG