I followed the whole list!
Claire and David, advertise Argentina on dispite of the taxi scam.
AVRooster, write a manual for visitors...
Skatedancer, you still left some places you should see... Yavi, Iruya... Termas de Reyes... Some dishes you should taste, some ice cream flavours you did not have... You can always get a new excuse.
Flintstones

Rats, just checked some airfares to BA for March. $1700!! I can't do it. I will have to continue to visit there vicariously through other's reports and Scarlett's move.

I believe lower rates should be available, particularly if you are willing to settle for a flight with one stop. Where in the US do you live, Sharon G?

Avrooster, I'm in Nashville TN.

SharonG: a very quick search on http://www.cheapoair.com/ for a mid-March flight BNA/EZE via Chicago on AA showed R/T rates of 800 and change. See you in March!! LOL!!!

Avrooster, thanks. Right now I was tenatively planning a return to Paris but you never know. Scarlett has got me yearning for BA again.

SharonG: I'm afraid taxes raise it to almost 1200.....

Sharon:

Just a heads up but American starts nonstop service from Chicago to BA in mid-December. May be a good option for you out of Nashville.

Yes, that's the flight I mentioned above.

Avrooster:

This new service is going to shave off a lot off time from Chicago. I have fairly long layovers at Dulles when I go next month. Plus, immigration at Dulles is a mess.

That is pretty good news. I had to fly to Miami and then to BA the last time I was there.