When you need to politely decline a suggestion to change your fair or exhibition booth location, it's important to communicate appreciation for the proposal while clearly stating your reasons. Here's an example of how to do this:
"We appreciate you approaching us directly, but we cannot agree to your proposition. We have occupied this space for a number of years and our partners have grown accustomed to seeing us there. Also, we find the current exhibition booth location effectively suits our needs. Therefore, we do not intend to pursue any changes to our current location."
This message acknowledges the other party's effort, explains your rationale, and confirms your position clearly and courteously. Maintaining this tone ensures ongoing good relationships and professional communication.