Ducted vacuums will be gone really soon, same as TV antenna, same as phone lines - those are good things to NOT put into a new build.
Give some second thinking re NBN too as with 5G Mobile Internet it will lose competition quickly too.
Unlikely you are going to get a unlimited plan on 5G any time near future as they won't allow it as it will choke the network and technology is not advancedto allow such amount of data traffic yet. And the speeds they let on actual mobile network and home internet on 5G is yet to be seen - see 1.5-2.0Gb speed telstra boasting is not going to be seen in real situation. See how 4G+ now - we are not getting 1/10th of it capable of and on home networks I don't see a plan beyond 200GB/month.. Who is going to put their neck under such plan?