Google Home is powered by the Google Assistant. Ask it questions. Tell it to do things. And with support for multiple users, it can distinguish your voice from others in your home so you get a more personalised experience. It's your own Google, just for you.
Mobileciti.com.au have Google Home for $146 (RRP $199), Australian stock, in stock with free shipping.
Harvey Norman $194
Officeworks $194 or $138.70 using their price guarantee against Mobileciti.com.au that I successfully purchased at Officeworks Carnegie today.