What would people do in Avalon or Alice? Nothing?
If you ignore the concept of it being Melbourne’s second airport Avalon supports a population of 300,000 people (Geelong and to the west). It also is a good jump off point for the Great Ocean Road, Bellarine Peninsula and Surf Coast (saves a bit of time and hassle vs MEL). Griffith area has a population of what? 40-50,000? Not in the same league as Great Ocean Road.