Argentina was superb. Surprisingly east to crutch about. We will go back (sans crutches) especially to follow so much of the excellent advice here.
We ate fantastically at restaurants I can no longer name. I am hoping host Melanie will comment with names below. She is starting a food blog soon, and so guided us well.
In addition to Buenos Aires, we spent a few days lounging and sampling wine in the Uco Valley. I remember almost all of it. Highly recommended.
Every nation has its quirks. As far as I can tell, every Argentine seems to think that every other Argentine is a thief. People stopped me on the street to say so, often several times a day. Also, many cars do not use their headlights at night. I do not understand.
Taking the night flight back, arriving 7am to NYC and going straight back to work was not nearly as bad as I expected.
In the end, though, someone stole my umbrella from the front pocket of my luggage. I shall draw no inferences about the thievery of Argentines.