There might have been a suggestion before. I couldn't find one, though. Since the trade-in program is still available, why not let the customers find out the value of their old phone through the website? There would be a selection process with categories similar to the way they find out if an unlocked phone is compatible. They would pick the brand name of the phone. From that they pick the model within that brand. The next one could be the condition of the phone with a rating scale. 1 meaning poor condition (dents, scratches, cracks, etc.) and 10 would be no damage. Also, there wouls be one more about the age of the phone. When that is completed, the system will determine the value of the phone based on those stats and possibly the demand for that kind of phone. Don't come down on me too hard for this as I did just make up the scale as I was typing the suggestion.