Becoming an expert, the mini ones can’t satisfy you? Do not worry, the Walkera Helicopters can make you happier. They offer different designs in feature and function, you will just find too many choices. Or you can view the Tarot Helicopters, they are of good quality and of course economical as compare to Trex. If you don’t like to assemble them, want one pre-assembled, then you can simply choose the Copter x . If you are an expert already, and want the most branded one, then go with the Trex Helicopters . Anyway, you can always find what you want from oomodel.