Recently paid 900 p/month for a gorgeous, brand new luxury villa in a top tourist destination by a very unhappy, newly poor owner who tried every trick in the book to scam us. Wouldn't do it again, but it was a decent stay. Yes, we're vultures doing geo arbitrage, the Argentines know & hate it, but the only reason a guy like him could build a home fit for a king was due to decades of welfare state government subsidies - not merit - I don't feel bad.
Most STRs outside BA, are sitting empty. I've seen entire neighborhoods empty, it's 2006 S. Florida in most of Argentina right now. If you have high risk tolerance & go full vulture - amazing deals can be had. If you want 0 risk, it's 200-300 p/night for short stays or 4-5k us p/month for long stays on resort/luxury like accommodation, which is also rapidly expanding in Argentina, for the precise reason of not having to deal with Argentines.