Talk about a "Money Pit"....
Boeing/Sikorsky sucked on that thing for the better part of 21 years, and 8 billion is a VERY conservative number.....! There was a lot more money "channeled" into that project than will ever be made public. One of the problems was that the technology would become obsolete before they could even get it flight tested, along with a myriad of other problems, egos being one of them.
Lets see, two flying prototypes at 4 billion (big PLUS) each....what a bargain. It should have been canceled in 98.
JMO