labor's digital utopia is pie in the sky, page-6

Can any one make these numbers work?

There's plenty of talk about the NBN but no basic numbers provided to back the argument up.

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Say 10 million Australian homes.

At 93% coverage.

Cost $42 billion.

Uptake rate a generous 50% = 4.65 million homes.

At $60 to $80 per month according to Swan - Average $70 (how much of that lost to service provider profits? 5%,10%,15%?)

Interest on $42 billion at 10 year bond rate 5.15%

Annual running costs of NBN system?