Bar Camp Buenos Aires last year was lots of fun; you can check out my post about it. I missed it this year. It's true that Chile is more capitalist; that could be an advantage or disadvantage depending on your point of view. My wife and I just got our work visas last week after working on it for a year and a half. (It's much easier if you aren't trying to set up a new Argentine company, without Argentine employees or partners, at the same time.)