I agree that the costs really can vary. You'll have many choices at a reptile show, and I've always had a hard time picking dragons online because I like to see them and hold them before choosing.
Also there is a reptile fair in St Louis next Sunday the 14th (so perfect timing) I believe it is just called the St Louis Reptile Fair, so if you google it you should be able to find all the details. Let us know if you end up finding one!