Property Ponzi?

It appears as time has gone on, as there have been less buyers , new incentives and ways to get people to buy property have emerged.
years ago you needed 20% deposit..those buyers ran out, so its 10%...then 5%..then no deposit... then tax breaks for people to buy an extra property....then First home buyers grants increase, then lowering interest rates to make it more affordable..and now even superanuation funds can buy property...

When they have sucked all buyers from every avenue they can think off, what will keep the prices up?
I am not anti property , but its prime reason is to provided a roof people heads...not to profit from it and make it out of their reach..