The resilience of pricing in the Argentine market has a lot to do with the fact that there are virtually no mortgages. No payments to make every month means a lot more people can afford to hang on, and hope, rather than the banks having fire sales.
And it means that the people who own real estate, by and large, have more money to start with, than the average home owner in somewhere like the USA, where its not uncommon at all for people to be one mortgage payment away from being broke and losing their house.
If somebody in LA loses their job, they generally lose (or sell) the house within 3 months. In Argentina, they can hang on for decades, and even not paying taxes wont mean you lose the house.
So the ability of people to just not lower the price, and wait it out, is much higher than in places where equity is low and loans are high and snapping at your heels.