fascinating study. Questions: 1. how can you drive the price down per corner? (make it affordable for large scale measurement). 2. don't most people already hav

fascinating study. Questions: 1. how can you drive the price down per corner? (make it affordable for large scale measurement). 2. don't most people already have a general idea of how noisy a place is when they visit? 3. will realtors pay for this data?