Yeah I think this is good. Then, knowing that these drivers use Bitcoin already, you can market products and services to them priced in Bitcoin. Interior car cleaning, and car washing services come off the top of my head, but perhaps a simple food vender service would suffice, knowing that people may use the Bitcoin paid ride sharing app to pick up food from you, or to take a ride to you, then go to relevent areas. Actually a lot to think about with this one.