$122 million a copy may be the all in cost of development and procurement of 200 53K's, but the V-22 cost per aircraft is only half of that if you ignore the decades of development. Those are not comparable values. Hell, I can't even find a proper all-in cost of the V-22 that puts the long development cost into an inflation adjusted current year dollar value.
They're different aircraft for different missions, but the 53K should be able to carry 2 HMMV's at a time vs the V-22’s one, and with a sling load, I suspect the speed and range advantages of the tilt rotor aren't as apparent. Is the 53K worth two V-22’s? Like comparing any platforms, depends on the mission.
Congrats to the team for passing Milestone C.