1. City scale: Wenzhou is a small city at the prefecture level. Compared with first-tier cities, its performing arts market and venue facilities may not meet the performance needs of big-name stars.

2. Venue facilities: Existing venues, such as sports centers, may not meet the venue requirements of large-scale concerts, and it is difficult to transform them into a form suitable for concerts in a short time.

3. Economic factors: Star concert tour needs a lot of capital investment, including venue leasing, equipment leasing, star fees, etc. At the same time, Wenzhou's economic level may not be comparable to other big cities, which may make it difficult for related enterprises or institutions to bear these expenses.

4. Cultural atmosphere: As a southern city, Wenzhou's cultural atmosphere may be relatively conservative, and its interest in music, dance and other art forms may not be as high as other cities, which may be one of the reasons for the lack of star concert tours.

To sum up, there are many reasons for the lack of star tours in Wenzhou, including city size, venues and facilities, economic factors and cultural atmosphere.