Very helpful, thanks all.

I wonder what I'm gonna do. I think I'll avoid the skimming thing by just using my credit card and eating the 3% fee they charge me. I'm not planning on buying much, just my expenses.

It's things like this that freak me out a little bit more than direct physical danger. I've never been to EZE but I've heard counterfeit currency is handed out like crazy. If everyone knows these GIG atms are sketchy I wonder why they are still there, or not monitored better or something.

I'll take both my cards just in case, but I'm gonna try and stick to using the Visa. I'll probably take my Bancolombia card and keep it totally separate in case I need it in an emergency.