In my case I am talking about the economics of Raider vs Tilt-Rotor irrespective of FVL and in a compatible comparison (ie. between two aircraft of similar size and payload specification).
Well then you have no baseline with which to compare, which was partially my point. Saying that a given tiltrotor is expensive to build and operate is a statement relative to a simple helicopter, not to some wholly unbuilt and untested compound.
Where does one get the idea that a coaxial ABC is simpler or cheaper than anything? Theres a valid technical argument that you cannot even build a functional high speed ABC above a certain rotor diameter. So scaling up actually argues the opposite point.
(Plus, you don't honestly believe the Sikorsky line that an S-97 would cost $15 million do you? Maybe without mission systems or a rotor!)
Has Bell even mentioned the target cost of this aircraft yet?