Is there really as much difference between all the radios/transmitters as there is in their prices? They look practically the same. Some of them you have to study close as the names are alike, Frsky/Flysky, are an example. Two or three letters and a couple of hundred dollars. A friend of mine who is a life time remote flyer, fixed wing and helicopter, swears by Spektrum. He has been using them and says they've been around forever. He says that Spektrum DX6E at $140 to $150 that you see is the best deal you can find. Anyway, it's another thing I'm trying to wrap my head around. When I bought my Yuneec it came with it's own that is proprietary to it, so they said, as I understand DJI, Autell , Walkera and a few more are.