Apart from the historical importance of Point Cook, it has very little going for it. local community hates it with more and more development encroaching on it's boundaries. Then you have silly CASA requirements like a warbird can not fly over a populated area, for whatever stupid reason. If you wanted to try to turn it into a warbird hub it would be a constant struggle to keep it there. Tyabb has it's own problems however apart from a vocal minority the community is pretty accepting of the airport, unfortunately the opponents are also rich developers so they keep at it. Both airports are close to the coast especially Pt Cook, with means salt and corrosion issues for long term parking. Temora is really the best place for the warbird scene to build a hub with it already set up there.