Whilst it is true to say that the attitude of "money is no object" was the way that militaries operated in the past when dealing with simulators, that is no longer the case. They just simply don't have the money. It is now far more task-driven, i.e. what do we want to teach? If we can deliver much of our training on a lower-fidelity device than we previously used, and still achieve the same output standard, why can we not do so? Why should we pay for fidelity that we don't need? Can we not free up capacity on the really expensive simulators & aircraft by doing this? We'd all love to train on Level D FTDs, but it's just not realistic any more.
Member states from within the European Defence Agency send large numbers of students to the UK for training each year to teach them how to operate in a tactical environment.
Simulators
You don't need a Level D FTD to teach how to operate tactically in a pair or to introduce EW. Or to teach an introduction to SAR procedures, for that matter, to put it in a civilian context.
Apologies to FFF for adding to the thread drift.