Dont forget the on going replacement costs of 1, 2 and 5 every 15 to 20 years, plus the cost of recycling 1, 2, and 5 if they can even be recycled in full.
Also the costs of the loss of the land that 1, 2 and 5 are set up on, plus the on going costs of expansion of 1, 2 and 5 as the population continues to increase.
Say double the population of Australia.
