I have been selling decent items that I don't want quite easily. I always price them a little bit below item worth and more than I can sell it to the replicator for. I have not had much of a need to have a crap load of "money". I also figure that I'm helping the community a little by selling at a "fair" price.
In just about every MMO I have played, I always undercut the market. Sometimes I sell waaaay below just to clear space. I've even received "thank you" letters from folks minutes after I put it up. I know some folks are going to turn around and sell it for the higher price but I don't care. My goods sell quick and I am happy.