Is the economic situation really better in the US? What type of job would you be giving up? Could you do that job here?
As you probably know, Argentina rewards people who start businesses and follow their passions, not those who get office jobs.
Would you be willing to re-invent yourself a bit?
Can your family help you?
I moved from the US to Argentina 10 years ago when the economy was in the shit hole. Now things are going well considering that the rest of the world is in a huge recession (unemployment in Spain?) and I am glad that I did. However, I am always on the lookout for economic and political trends and adapt my economic situation to them. I found out early on that working as an employee in Argentina is stupid--long hours, little pay.
Look for fields to enter that are growing in Argentina and enjoy government support. There are lots of programs on city and national level to help those who want to start a business. I was offered 0% interest loans from the city, workshops, contests for funding, etc.
I say go for it.
BTW, people have been saying now for 5 years that the local economy will explode.
Does it make sense to move to Argentina if you want to buy dollars and travel the world? No. But if your family and culture is here, go for it, adapt, survive
Try this: close your eyes and imagine what your life will be like in 20 years in the US and 20 years in Argentina. What makes you happier?