I have limited experience with Unicom type facilities.
1) Ayers Rock - relative little traffic - a jet or two inbound - quite useful.
2) Broome - reasonably busy (in my experience) but apparently only moderately busy for the locals - I found the Unicom service to be a real nuisance - could hardly get a word in - kept wishing the guy would shut up.
I think it is obvious why the aviation industry is resistant to change. It is a relatively conservative industry and needs to be so for safety reasons.
Those of us who have been around in aviation for a few years have seen change for the sake of change - much of it now abandoned or changed so many times that nobody is able to remember which version we a working to.
Dr 