Surely the software and certification issues are going to be even more costly - who is likely to install this kit and in what?
Sounds like marketing hype to try and get investors to pay for the R and D costs.
Looks like US taxpayers are already 'investing' in this effort:
Tests so far have been carried out by Sikorsky using a modified A-model Black Hawk in conjunction with the Defense Advanced Research Projects Agency (DARPA).
This looks like a typical DARPA project that pushes the state of the art and sometimes results in 'real world' systems 5-10 years down the road.
Not that many years ago DARPA sponsored an autonomous (land) vehicle contest for a couple of years, first year no vehicle completed the course.
Today cars that could finish the course are being tested by many companies and are mainly held back from sale by regulations/liability and snow/extreme conditions. (Where most people should not be on the road either.)