This might be of interest to some folks. Snowys[1], in South Australia, has Back Country Cuisine real cheap. Single serve mains come in at $8, for example. Five packs are $25. This is the cheapest I have seen in Australia and what's more, they do free postage to most of Australia. No, I don't work for them - they are just my local gear store.
[1] http://www.snowys.com.au/products.aspx?key=back+country