Sent via email from Forbes, I didn't pay attention to this list until probably last week when I was at the Stock Exchange of Thailand to attend a classical concert for Japan. No royals there; just approximately seven ambassadors in attendance, but enough to see some connection to draw up an 'affluent' list. 1. Thailand's King Bhumibol Adulyadej, worth $30 billion 2. Brunei's Sultan Haji Hassanal Bolkiah, worth $20 billion 3. Saudi Arabia's King Abdullah bin Abdulaziz al Saud, worth $18 billion 4. UAE President Sheik Khalifa bin-Zayed al Nahayan, worth $15 billion 5. Dubai ruler Sheik Mohammed bin Rashedal Maktoum, worth $4.5 billion 6. Liechtenstein's Prince Hans-Adam II, worth $3.5 billion 7. Morocco's King Mohammed VI, worth $2.5 billion 8. Qatar's Sheik Hamid bin Kalifa al-Thani, worth $2.4 billion 9. Prince Albert II of Monaco, worth $1 billion 10. His Highness the Aga Khan, worth $800 million 11. Oman's Sultan Qaboos bin Said, worth $700 mil