Pontious, I understand that fine. My point really being that the insurance policy has never been used therefore you could argue now at time of renewal do we need such an expensive policy?
In the RAF's hands I am utterly sure the Casa 295 would be a very capable platform with a still credible weapons capability.
Diplomacy, deterrent or just good luck we haven't had the need to use them and the cost of the shiny American replacement I'll wager is significantly higher.
Will the difference in weapons systems between the two be a factor in any future possible diplomacy or deterrent? IMO no.
The sensors and the ability of the crew with a still credible weapons system for me would be more than enough given the prohibitive costs.
Money no option, then sure get the gold plated policy, sadly money is a huge factor.