"a passport goes for a $250,000 cash donation to the country's Sugar Industry Diversification Foundation"

Henley boasts that it can obtain passports for individuals and families in as few as three months. It also publishes a yearly Visa Restriction Index, which ranks a passport's value based on number of countries one can visit without a visa.

Last year, St. Kitts was 28th. Dominica was 54th. A U.S. passport and an Irish passport tied for the 5th most valuable. Finland, Sweden and Denmark tied for first place, and Germany andFrance second and third.

But those rankings can change as quickly as world events. Kalin warned as much at the opening of last year's conference, which Reuters attended.

Read More | Atossa Araxia Abrahamian, Passports ... for a price | Reuters