...and a climate similar to sunny So Cal.
It sounds fairly stable and safe....watch for falling copper.
And worse earthquakes with tsunamis. It also has the climate range similar to Baja, Mexico all the way to Canada. And the water swirls the opposite direction down the toilet bowl.
One positive about Argentina and Chile is the snakes are not poisonous, but other things are such as this crazy tiny spider (or perhaps I am thinking of Brazil) that can kill you. Then again there is a tree frog here in the Philippines that spits in your eye and blinds, but I've been lucky to avoid them thus far (although I almost went looking at one when someone grabbed me and informed me of the danger).
The most important thing is the cultural adaptation to a new country is not easy for most people. Most highly underestimate this. I speak from decades of experience of adjusting to another country from my birth place USA.
Edit: be wary about land rights outside of the metropolitan areas especially south of Santiago, as there are many areas where the natives still dispute land rights and you can end up in a mess. For the same reason, never buy land in Patagonia, Argentina.
In short, if something is cheap, there is probably a good reason. The again, I punted on a $25,000 acre size property on the beach near La Paz, Baja, Mexico in 2001 and you can't get anything there now for 10X that price. But I believe the bubble is coming near to its collapse.
The copper doesn't fall from the sky, but their economy is something like 50% dependent on the price of copper.
Mono-economies are very unstable. Don't let the current $150 trillion global debt balloon lull you into a false sense of stability.