That's an extremely misleading argument. The offerings are hobbled by the fact that most of the new connections (FTTN) can't achieve those high speeds, and secondly, the CVC pricing model discourages ISPs from providing a service generally that doesn't slow down at peak times, and the CVC also makes it more expensive. It's the perfect trifecta to discourage the higher tiers - and the growing uproar by the general population is an indication you're wrong.

Compare to a country with a more sane model (like NZ, the US in places or many Asian countries), and you'll find much higher uptake of fast internet. The Government could fix the NBN to encourage people to take up faster plans if they wanted, but their insistence to not fix any of the barriers makes me conclude they must be doing it intentionally...