I currently use a Spektrum DX 18 for my planes and a DX8 for my Heli's. So here are my questions; Is the only thing u consider other than price the loss of your airplane or heli? What happens if your 15$ rx locks you out and your plane/heli crashes into someone's property, or heaven forbid, even worse, into someone? I do make sure to spend the money on genuine spektrum or JR rx's for every plane or heli. To me it is not worth the risk no matter the savings. I have been using Spektrum since the beginning and (knock on wood ) have not lost anything I can blame on radio/Rx failure.