1. Consistency: Mechanism manufacturing can ensure that the size, shape, and quality of each wine cup are completely consistent. This means that no matter how many glasses of the same model you purchase, they will maintain the same characteristics, providing a consistent tasting experience.

2. Efficient production: Machines can produce wine glasses on a large scale, faster than manual production, which is very important for meeting market demand. It can also reduce production costs and make wine glasses more competitive in price.

3. Quality control: Mechanism manufacturing is usually accompanied by stricter quality control standards, which can detect and eliminate defects in the product, ensuring the consistent quality of the wine glass.

4. Innovative design: Machine manufacturing can achieve more complex and innovative wine glass designs, as they can undergo more complex shapes and decorative processing.

However, handmade wine glasses also have their unique charm, as they often represent the exquisite craftsmanship and attention to detail of craftsmanship.