Don't they have Google Maps?

Other people might have different priorities than you. Shocking!

Because it's fun as long as you have more money than the locals.

Because they don't have the brains to see that they'll spend the rest of their lives on the street once the money runs out. Go through any of the bigger cities in the Philippines and you'll see plenty of homeless foreigners who used to live exactly the kind of life you described.

They're grasshoppers, not ants. Aesop's fable reference