GH does provide a fantastic capability but the costs are just too high. And they will have little incentive to reduce costs now that the US has selected it for BAMS.
Too high? Compared to what? No-one, not even the USN yet, has deployed a capability that meets the requirements we have for a maritime UAV capability. How do you know GH is "too" expensive?
What is the budget for this program in the DCP (AIR-7000 Phase 1B)? $2-$3b? Sounds about right to cover a GH acquisition, especially given the requirement is a for a HALE UAS system.
There is an interesting thing about cost reduction. The cheaper the product, the more you can afford to purchase (assuming your sustainment budget suffices).
How do Australia's sustainment budgets tend to look (ie: ordinary)?
Hence why we don't tend to get large numbers of platforms...
So Avenger/Mariner for the RAAF, Scan Eagle/Integrator for the RAN and Army (scrap Shadow).
And you'd scrap all the investment we've made into our Shadow 200 systems for what reason? The money we've already spent is "too high"?
Okay...