NBN rollout doesn't make sense

I was reading the NBN site and discovered our part of Dapto is no longer on the rollout map. 

In fact, all of the 2530 area code is except for Southern Dapto, Penrose, Mount Brown, Horsley and Yallah.

All the areas with the slowest net speeds now are missing out and they are rolling it out where the highest speeds are now available. 

Something fishy going on right there.

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