The thing is, I don't want to buy this apartment. I don't trust the local builders enough for that and I believe that it will devalue faster than my rent paymen

The thing is, I don't want to buy this apartment. I don't trust the local builders enough for that and I believe that it will devalue faster than my rent payments. I also don't plan on living here for more than a few years. That calculator puts me at $537/week in just loan repayments for 30 years and does not include strata fees, council rates, sewerage fees, building insurance, etc. To buy a property means paying tens of thousands in taxes each time you buy. If I stay here for 2 years and sell I would pay more in just taxes than the entire rent would have been and I am on the hook for any issues with the building or changes in value. And I am perfectly happy to pay a known weekly amount which is well within my budget and put my savings in to other investments which don't tie me down to living in a particular place, do not require taking out multi decade loans and are easy to sell back for cash later.