[molmalo]

As a national of Argentina, I can say that the number of expats here is high, because our National Constitution states that it is "to all men in the world who wish to dwell on Argentine soil". And article 25 reads: "The Federal Government will encourage European immigration, and it will not restrict, limit or burden with any taxes the entrance into Argentine territory of foreigners who come with the goal of working the land, improving the industries and teach the sciences and the arts." (Further reading in http://en.wikipedia.org/wiki/Immigration_to_Argentina )

This leads to an explicit invitation to come, to everyone who wishes to work here. In the las 3 years, almost 45k people came to live here, from Spain alone. (This article from El Mundo is from 2010, the number has increased since then, http://www.elmundo.es/america/2010/11/30/argentina/129114534...).

And a nice incentive is that there is A LOT of demand here for developers. I hope you enjoy your stay here! =)