RE: What to do with old models??
I think DB nailed it pretty close. The Stik is a great plane. You can have a lot of fun with it. The cub is a blast on floats too. As he said, if the money isn't an object, keep them and enjoy them. If it is, put them in the trade section for the one you want, or try the online auction and see how they do. That is the best way to get the actual worth of them. Ebay works well too for some of the odd stuff. You would be amazed at what some stuff sells for, and then others don't sell. Its a strange thing sometimes.