I love listia, because I can get rid of the stuff that has been laying around the house - things like cd's and my old stamp collection. In return, I can get gift cards or items my kids want for Christmas. Just like any other auction site, you do have to be careful who you do business with, but the choices are endless, and "free" is always good! I also like the sense of community that comes from doing business with the same people, as listia is still small enough to be personal, but big enough to have choices.