It is expensive, especially when there are gyms & cooking schools charging 10-15k baht & you will have to do a border run in 6 months unless you still have 500.000 baht in your bank after your innitial visa apication (So 1 million baht when applying) & re-register with the school.
House of taste thai cooking school
Arun cooking school
@Muay ************
gym
much more affordable options^, why pay 2-3X as much when you dont have to ?