If we are starting today from scratch, ideally you'd have:
1. North Sydney / North Shore
2. Sydney City / Eastern Suburbs
3. Southern Sydney (inc the Shire)
4. Inner West Sydney
5. Western Sydney
6. South West Sydney
7. Newcastle
8. Central Coast
9. Wollongong
10. North QLD
11. Sunshine Coast / Moreton Bay
12. Brisbane
13. Ipswich & Logan
14. Gold Coast
15. Canberra
16. Melbourne
17. Adelaide
18. Perth
19. Auckland
20. Christchurch
21. Wellington
22. Geelong
Covers the top 15 population centres in Australia and reinforces our heartlands, plus the top 3 population centres in NZ