fortuneguy,
I understand the celebrity comment. But you are spot on when you question Thailand as an "authentic" teaching experience. Given the ridiculous standard that meeting 50 students once a week for 45 minutes constitutes language instruction, I'd say sometimes I felt like I was part of a charade at my first govt school. Not so when I taught in an English Program at my second school. But I felt great teaching at both places.
Since you mentioned Vietnam, I'd like to comment. I spent a week in Saigon assessing the city as a place to live and work. I'd NEVER go there again. Apart from being offered a salary that excluded my 10 years' English teaching experience in the US, the city is completely unlivable for me. Western food is unbelievably expensive and the main form of entertainment in Saigon is driving around the city on a motorbike honking one's horn. Panhandlers are relentless and overly aggressive. At night, I was followed on the SIDEWALK by ugly prositutes riding motorbikes who offered me "massage." Ignoring them and/or saying no did not stop them from continuing their obnoxious sales pitch. The language school where I interviewed couldn't be bothered to assist me in finding housing or even introducing me to other teachers they employed, even though I had SPECIFICALLY made a special trip to Vietnam to interview there. To summarize Saigon, in the words of the immortal Betty Davis, "What a dump!"