cost of living in australia

I just purchased takeaway fish and chips,which cost $42 dollars for 2 people was basic and the quality was quite poor.price of everything here is becoming out of reach of the av person.i have farms in aus and overseas and my wife is a specialist doctor in aus so we can afford to pay a bit for our food but just amazes me how much everything costs here.wondering what the incentive is to remain in australia.the way i see it is to sell the farms in aus make the wife work 6 months a year here then live in countries where we have ifinancial interests and use aus for a base for health and children education.