Hobart is for the most part right. While I have encountered some good people, the vast majority working in the ESL world have been the exact opposite. self serving and incredibly greedy.

If they make a thousand you'll be luck to make 50, and if you ask for a 100, your outta there and on to the next sucker with no spine who will accept 50 for a time.

I have recently went to two schools myself looking for work. Both would give me no details about the job, wanted me to do free demo classes, and then would discuss "pay" with me. When I argued that I could not possibly know if I even wanted to come in and teach two hours for free if I knew nothing about the job I never heard back from them.

This is mostly what you will find here in China, don't be fooled by clever ads. This is no tourist paradise, and even if it were, you ain't here as a tourist.

Korea from what I have heard isn't much better, but at least you'll get paid a hell of a lot more. My advice, stay home.