The US Embassy has confirmed, that beginning December 20, 2009, US citizens entering Argentina
only at EZE, will be charged a reciprocity/visa fee of US$131 upon entry. The visa will be good for multiple entries, and valid for 10 years.
(Note the Argentine government is not calling this a "visa", merely a reciprocity fee).
This confirms the information that was posted on the web site of the Dirección Nacional de Migraciones today.
http://www.migraciones.gov.ar/
In addition, Canadian citizens will be charged US$70 for a single entry visa, and Australians US$100. Payment can be in Argentine pesos, US dollars, by credit card, or by traveller's check (at the current exchange rate if paying in other than with a US$-denominated instrument).
This is the culmination of a new law that was passed some time ago, but had not been implemented until now:
http://www.flyertalk.com/forum/argen...ee-likely.html
Note, there is currently no ATM prior to immigration (although this may change), so travelers will need to have the appropriate form of payment handy.
John