Why is the Python course in Tencent class so expensive?

I have a colleague who is also engaged in training and selling courses here. Let me brush it. These can only deceive those small whites who have poor self-study ability, blind career planning and don't know themselves. One characteristic of these people is that they always want to find a good job through technology. They also want to study, and they also want to study. In the end, they can't learn anything and lack perseverance.