as I can see, you're new here LOL
money-related posts are generally ignored here (except if they showed what, ehm, enthusiasts had claimed) , so ... you're welcome
Still pressed for time, so I promise I will get to the studies that are public that are feeding into the NGAD.
That said, fanboys are gonna fanboy. If you really want to know the status of a project, watch the money. Budgets and timing matter more than KEWLDUDEPROJECTS. ahem.
And I have a feeling the PCA/NGAD/WhateverTheAcronymOfTheWeekIs will be interesting in a big, bug way.
LOL a good question, if F-35s are such marvels, why not to get even more of them
It's less about marvels than they are the standard F-16 replacement and adding another aircraft to your logistics chain is probably not worth it. A SLEP is going to be the best route for the F-15s. Money matters.