There are too many expenses in the hospital and can make a person bankrupt overnight. Going to another place closer and easier like Mexico will save a lot of money. That is smart thinking.
A one-time cure does not necessarily improve health immediately, it is a process. Many people choose countries in Asia to be treated by traditional methods.
In this era of globalization, people carefully review their expenses in any activity. In which area expenses are lower, demand for everything is high. Even tough America is the most sufficient countries in the world but it is very natural that people will go elsewhere to meet their expenses. I would agree with you that there are many people in the world who come to Asia for medical treatment. On hand their good treatment and on the other hand reducing the cost of money can be the main motive of that particular people.