I do not know about the costs of attending many schools but in my experience here in China is that EF is one of the more expensive schools for a student to attend. It also seems that if you are a teacher at an EF school one term it may be ok to work at but if the DOS changes or a hard ass teacher shows up it then becomes a terrible school to work at. I have met a few EF teachers that liked their work. We all have our own ways to look at life.