I think i`m just stunned by how cheap these sets are, bearing in mind this is up to the minute technology. How long have these sets been available ? is it long enough to know if they are reliable, has there been many returns, if any.
What I think has happened is that radio control toys have boomed - expanded foam park flyers, helicopters and the like, on 27Mhz. So Chinese factories are making transmitter boxes and sticks in bulk for very little cost. At the same time wireless computing (which uses 2.4 Ghz) has boomed, so other Chinese factories are making 2.4Ghz electronics in bulk for very little cost. Several Chinese companies have just merged these two feeds to produce cheap 2.4Ghz Tx/Rx combos.
They will have no dedicated model flying development team, so they won't develop all the clever bells and whistles of the 'professional' manufacturers. But for run-of-the-mill applications both the above technologies are well proven, so I expect the cheap sets to perform OK. Just don't expect any clever software for specific model applications.
Of course, if these sets take a percentage of the market, Futaba and the rest will have to react, and produce a low-cost version of their own, or leave the cheap market to concentrate on high-end systems. That's how capitalism works....