Aviation in general has always been labor intensive with multiple parallel lines of development. This is a hobby for daredevils and hot rodders and experimenters and artists, and you can't standardize that. Factory RTF airplanes take 90% of the work and thought out of putting an airframe in the air for those who just want to open a box and start charging batteries. The OP can have what he wants from those products, but he'll pay the price. ARF's take easily 70% of the work out of it and don't cost extra, and people still whine about them.</p>

What I have trouble imagining is the time when you had to build your own radio, then figure out what went wrong and fix it, then build your airplane and crash it and figure out what when wrong again, then build and fix and repair until one day the whole shebang actually worked right. If a guy got one 10 minute flight and didn't have to repair his plane at the end, he was pleased. 50+ hours of labor before getting one flight in, and nothing was standardized. The manufacturers do ten times as much for us than they used to. </p>