Costa Rica is impossible for even me to immigrate to alone, I don't meet the financial requirements, or even come close to it. Costa Rica is a very difficult country to immigrate if you're a Cambodian with no bank account. They do like Canadians and Americans with fat savings accounts though, hence why all the hipsters flock there.

There are only 3-4 countries in the western hemisphere even willing to give Cambodians a brief tourist visa without a mountain of paperwork. Cuba and Haiti are the only easy countries, Ecuador and Panama easy tourist visas, but near impossible immigration. We did live in Ecuador briefly before our immigration lawyer kept our money and providing no visas, causing us to flee before overstaying.