I agree about the job opportunities, and that if you invest 2 years of not being paid / not progressing at your current employer or elsewhere you may expect to get the best out of it. To add an International perspective to the issue, several people's take on the issue is the following (at least in Argentina, probably Brazil and Chile are similar):
Ultra Elite / Elite: Admission to one of these will make me willing to rellocate for 2 or more years almost regarless of any situation (family, friends, job, etc.)
Trans Elite / Near Elite: If I'm hesitant about relocating then I'll probably stay home and go to top local (IAE, San Andrés). If I want to have the international experience and do not have much family or other concerns, I'll go anyway.
Top European (IMD/LBS/INSEAD/BOCCONI/IESE, etc.): makes much more sense for people with dual citizenship who are willing to rellocate to anywhere in the European Union.
Anything else: it's a hell of a lot of money to spend on something that's not as valuable. I'll better stay home and attend top local. Top local usually costs about 20 Thou U$ vs. you know for US schools. It's also much easier to get sponsorship from employers. And your living expenses are much lower. Most people go part - time. Actually part time programs are much more prestigious than the few full time programs (full time students are usually disgruntled former employees with not so much experience who are trying to switch careers, while full time are middle management trying to keep progress steady). All programs are 1 year.
This take does not mean that top local schools are comparable to Trans Elite programs, it just means that the much higher costs of going abroad do not outweight the perceived benefits of the program. Additionally, for individuals planning careers in Argentina, any program outside UE / E would not be easily assessed by local recruiters. So the "perceived" quality / usefulness of local programs kinda of matches the TE / NE programs. And going TE/NE means recruiters are much less likely to "go the extra mile" to sponsor work permits. So your international experience is usually limited to studying abroad, but not working abroad.
The "objective" comparison, judging by one of the rankings in which IAE was assessed, is that top local is about equivalent to US top 50+ or so.
Hope it helps. L.