I diagree with the thesis. An art project like the one mentioned is relatively small. CE projects, which want to ship millions of units is an entirely different affair, usually costing millions of dollars and large teams composed of many different specialities. Even if you did raise $5 million USD you still need a design team and manufacturing. And there's no guarantee of success either. I just don't see Kickstarter…
Perhaps we merely need to modify the thesis: Kickstarter is the user interface by which independent designers connect a thoroughly mature, ever-improving ecosystem of OEMs and prototyping shops to consumers, thereby potentially disrupting consumer electronics. The real force here is small-batch manufacturing, which has been a long time in coming. Laser cutters, water-jet cutters, 3D printers, and - perhaps more impor…
Actually, there is one area where rapid proto has helped, and that is with PCB manufacturing. It is relatively easy to get boards done quickly. The board outlines are done with CNC, and the holes are often laser drilled.
But your job is definitely not over when you email the design file, in many ways it is just beginning.