Hobby Grade Radio Controlled Model Vehicles vs. Toy Grade R/C

On the RC Deep Dive podcast we constantly talk about how Tamiya, AE (Associated Electronics), Kyosho, Schumacher, Losi, Arrma, and Traxxas are hobby-grade R/C cars, trucks, buggies, tanks, busses, vans, and jeeps. But what is the exact fine line between toy-grade radio control vehicles and the superior hobby model kits, and how has this line changed over the last half century? In this episode we define this moving point of hobby-grade and toy grade radio-controlled model vehicle separation.