Calibrating your air data meters (or any precision instruments, for that matter) regularly is vital for numerous reasons:

1. Accuracy: Over time, sensors can drift away from their original specifications due to wear, environmental factors, or even just regular use. Regular calibration ensures that the measurements taken by your air data meters are as accurate as possible.

2. Consistency: Consistent readings are crucial, especially if you're comparing data over time. By ensuring your instruments are calibrated regularly, you're ensuring that the readings taken at different times are comparable and consistent.

3. Safety: For industries and applications where air data is crucial for safety, like in aviation or environmental monitoring, ensuring the accuracy and reliability of the equipment can prevent accidents and mishaps.

4. Regulatory Compliance: In many industries, regular calibration of measuring equipment is not just recommended but mandated by regulatory bodies. Regular calibration ensures you remain compliant and avoid potential legal complications or fines.

5. Cost Savings: Although there's a cost associated with calibration, it's minimal compared to the potential costs of making decisions based on inaccurate data. Inaccurate measurements can lead to waste, rework, or even damage to expensive equipment.

6. Confidence in Data: Data-driven decision-making is only as good as the data itself. By ensuring your air data meters are calibrated and accurate, you can make decisions with confidence.

7. Extend Equipment Life: Regular calibration and maintenance can help in identifying potential problems before they become severe. By spotting issues early, you can prevent damage and extend the lifespan of your equipment.

8. Benchmarking: If you're using multiple instruments, regular calibration can help ensure they are all reading similarly, making it easier to compare data between them or to use them interchangeably.

9. Quality Assurance: If you're involved in research or in industries where product quality is crucial, having accurate measurements is essential for maintaining product standards and ensuring customer satisfaction.

10. Environmental Impact: Especially for industries that release emissions into the environment, accurate measurements are crucial for ensuring compliance with environmental standards and minimizing negative environmental impacts.

In summary, regular calibration of air data meters ensures accurate and consistent data, maintains safety, fulfills regulatory requirements, and saves costs in the long run. Not doing so can lead to inaccurate data, potentially causing operational, financial, and safety issues.