A large number of cultural heritage sites can be found in many countries of Southeast Asia. These sites attract an increasing number of tourists and income to these countries. Unfortunately, due to lack of money or resources to sufficiently protect these sites, many of them are in poor condition or deteriorating (Glover 2005; 2006; Tuan and Navrud 2007). Therefore, there is a need to put a price tag on these cultural heritages in order to justify the costs of preservation and conservation programs.