Luxurious housing makes the most profit for developers.
https://www.upmove.com.au/post/cost-of-living-in-australia
However, it's a small part of the market, when compared to the amount of people requiring basic comfortable housing needs.
Mixed income level buildings could be part of the solution.
https://en.uhomes.com/blog/cost-of-living-in-australia
A lot of developers like to build big and tall and charge sky-high prices.
https://www.nytimes.com/2024/03/27/world/australia/economy-cost-of-living.html
Perhaps a compromise could make the best of both worlds. The delux housing at the top 3rd or quarter of a tower, with the rest for those seeking a more affordable level of housing. The up side would be more densification vs. urban sprawl. However, the down side would mean that more people would be living in tall buildings with less of a push for more urban sprawl and low rise housing.
Midnight Oil - Dreamworld https://www.youtube.com/watch?v=OcKcjpSWmm0
Midnight Oil - Dreamworld (Ellis Park - The Concert / 1994) https://www.youtube.com/watch?v=NeIJo_qiJDg