Is it a pyramid scheme to spend 70,000 to 80,000 yuan to learn the Yijing?

Learning the Book of Changes costs 70,000 to 80,000 yuan, not counting pyramid schemes. According to relevant data, The Book of Changes is a treasure in China traditional culture and an important part of Confucianism. It has existed for more than 2,000 years and is one of the five classics among the four books and five classics. Learning the Book of Changes and inheriting the ancient culture of China is a great event, and it is not enough to advocate it.