Nice thinking M-Dot but not all International carriers have the CASA GPS APP approval but can slip down an ILS tomorrow. Things are changing quickly though. Domestically? Yep agreed but the good coin is from the foreign carriers who would pay larger sums based on Pax/Ldg weight.
The ILS in Cooly has been a basket case for awhile now. Ideally it would be from the south if not for the "Rich & Famous" (read egocentric) living South under the approach, plus the 2 spot heights infringing ILS terrain clearance. It may have to be offset like the VOR.
In from the North is doubtful, as a visual segment to align with rwy centrelink would still be needed once inside the hill as per current ops.
A curved App like Queenstown? Now we're talking but that requires RNP AR (Approval Required) and an RNAV or GPS RNP down to 0.1 which entails a lot of training.
Would personally like to see an ILS there and accordingly am very keen to see what evolves, if anything. Just my 2 cents worth anyway.
Happy Landings
