The possibility of living so cheaply is absolutely intiguing. As long as there are internet connections, lots of (cheap) food, and a life without responsibility, I could see a lot of American slackers picking up the idea.
I wonder how hard it would be to get the fulfil the legal requirements necessary to live in the said countries.
I don't know how feasable it is, but the idea of not having to work and still being able to live quite a comfortable life is really appealing to me right now.