The fee of 7000 yuan for the network optimization training class might be too much or too little compared to the content and quality of the training. This depended on many factors such as the specific content of the training, the qualifications and experience of the instructors, the size and reputation of the training course, and so on. Generally speaking, the price of network optimization courses should fluctuate within a certain range to ensure that they provide valuable training content and help students improve their network optimization skills. If the price was too high, they might have to consider whether the training content was really valuable or whether the credibility of the training class was reliable. If the price was too low, they might have to consider whether the quality of the training was good enough or whether the training class had enough resources to support the students. Therefore, a comprehensive evaluation of the price and content of the training courses was needed to determine their advantages and disadvantages and make a wise decision.