I'm a PGR rider. The only thing better than hearing it rolling by, is being right in the middle of it, and seeing bikes as far as the eye can see, riding for our fallen heros.
One ride in particular comes to mind. We had about 500 bikes riding escort of 6 Medal of Honor recipients from DFW airport to Gainesville, Tx. As we were heading down I35, I noticed a solitary man standing beside his truck on the side of the road, at ramrod attention, holding a salute as the entire line of bikes passed. The image will remain with me forever. Almost everyone I talked to on that ride made note of him. It was one of those "wow" moments.
Only the deaf would appreciate the sound of 100 harleys ... No thanks. I still have my hearing.