There is a reason they have taken over- it's because they are better.
No they are not. Rainboe and I must agree to disagree.
Like a lot of Australian aviation: dumbing down to the lowest common denominator - the rest of the world! Hard to soar like an eagle when you're surrounded by turkeys...
Still, PAPI makes stabilising our approaches much easier now: "hey Bloggs, you're going a bit low!" "ya reckon? They look mostly white, well pink, err orange to me!". "Yeh OK, press on!".
Useless system that works only at 300ft and below - too late to be of any value then.
You get what you pay for: cheap and nasty.
Changing the globes for better technology sounds like a great idea to me. I'm not sure CASA would get involved, depending on how tightly they define the system specs. How about approaching the
Airports Association; the airport owners/operators make the decisions about what gear they use.