What is the annual cost of a PiCycle™?

The electricity only costs $.14 per charge.  You don't pay any additional money for insurance as homeowner's insurance usually covers it.  You won't pay parking or toll fees with a PiCycle™.  The most expensive part that needs replacing is the battery, which is good for about 15k miles (assuming you follow the maintenance instructions of a full discharge per month).  Regular replacement of all parts that wear: battery, controller, bottom bracket, grips, saddle, tires, tubes, brake pads, etc. results in a total cost that is ~1/10 that of an automobile.