Very true living in BA today is more expensive that in the USA....!
this really depends on where in the USA you live, and HOW you live.
I only live in Buenos Aires 1/4 time, but I still pay for my home and all its expenses in Argentina year round.
And pretty much everything about my apartment in Buenos Aires is significantly cheaper than my home in rural Washington State.
Taxes are a fraction of US taxes. Utilities run maybe 20% of what I pay up here. Insurance in the USA is insane- I live and work on the same parcel, yet must pay for TWO different flood insurance policies, and two different home/fire/theft policies- and either is more than you would pay in Buenos Aires by far.
If we paid full rate (we make little enough to get Obamacare subsidies) my wife and I would pay about $1200 USD a month for health insurance in the USA.
Again, cheaper in argentina.
We live in Buenos Aires 3 months a year, and have owned our place there almost ten years. My day to day food, drink, and entertainment costs are lower there than in the US.
I buy certain clothes in argentina- not everything, but some things are cheaper.
All up, I think I can live in Argentina for well under half what it costs me here.
And an equivalent apartment in Seattle, my nearest city, would cost about three times the price that they are asking NOW for apartments in good neighborhoods.
certainly, many things are expensive in Argentina- Imported things. but if you live locally, you will be able to live a lot cheaper than current in city Washington DC prices.