I sold two for $1,000 this summer. Both had upgrade controllers and displays. Both had really low hours on the motors. One had 100 miles on the motor, the other had 200. But the batteries had been rotated on one and it had 1,700 miles on the frame (motor replaced at 1,600 miles). So at least $500, but many of them sell for $600-$700 on Sondors Facebook sell and swap.