Common parts and maintenance equipment for the three variants were to reduce cost over the life of the program. Now more than a decade late and an estimated $170 billion over budget for just the acquisition of the planned 2500 aircraft fleet - the savings offset in the operational costs (total estimate for purchase and O&M for the life cycle is 1 Trillion) is reduced.
Is the aircraft worth it - I guess it better be - with the Defense budget in the situation it is in - there is no opportunity at this time for a do over.
Well my intention in posting the link to the video was simply to show interested people that the program had recently achieved a meaningful milestone/capability. I'm ceartinly not qualified to discuss defense spending priorities or anything like that.