Are you considering membership based on your personal income or business income? If you manage a hotel or tour company (for example) and charge your customers in US dollars, Euros, or Australian dollars (for example), then your pricing is most likely at a premium level to match the expectations of customers arriving from these more affluent areas. Therefore, we would expect that you can be able to afford our very nominal membership price. Remember that we also offer a free membership option.
If this doesn't suit your situation, then please consider applying for a grant from your tourism office, the United Nations World Tourism Organization, or USA or EU assistance charities, or economic development organizations that typically fund an expense like this as education, training, or economic development.