I am not so sure why it is so expensive to go to Cambodia. Maybe it has something to do with the taxes being paid to their government. Nagulat din ako when I found out that the airport tax for an outbound flight from any Cambodia airport is US$25. Ang mahal nito kumpara sa airport tax ng ibang countries sa Asia. Singapore's Changi and Bangkok's Don Muang charges around US$13 only, Hong Kong's Chek Lap Kok charges around US$15 at sa ating beloved but delapidated NAIA ay around US$10 lang.