I have a particular soft spot for Somtow. I really enjoyed his writing, which I encountered in Asimov's in the George Scithers days, he's the first author whose autograph I sought out (at L.A.con II in 1984, my first convention), and he and I were on a panel together at a convention in Phoenix years ago talking about making movies. (I was on it because of the work on my two amateur movies, The Zombie Legions and Those Darn Daleks.) Oh, and I seem to recall helping carry his luggage at an OryCon, or was it a Portland Westercon?
Tickets are on sale for as little as about $25, but getting to Thailand would be a bit tricky