Having a rating hanging over your head is like driving handcuffed. Us drivers, if we fall below a 4.6 rating we can be deactivated and removed from the system. So basically you lose your job, and you can't drive anymore. Some of these guys through Uber have purchased their own vehicles through special financing. Now, if they purchased a vehicle and they've driven for 2 years, and that vehicle starts to get some milage on it and it's depreciating, who's to say Uber won't be able to remove their ability to have more customers?