I have 18 used NEOs to sell. Let me know if you are interested in a bulk purchase. Currently selling for $42.50 new on REV Robotics.
From REV Robotics:
The NEO Brushless Motor is the first brushless motor designed to meet the unique demands of the FRC community. NEO offers an incredible power density due to its compact size and reduced weight. As it is designed to have similar performance characteristics and matching mounting features, NEO can be a drop-in replacement for CIM-style motors. This motor is perfect for your FRC Robot, Industrial platform or Warehouse robot, Electric skateboards and more!
NEO has been optimized to work with the SPARK MAX Motor Controller to deliver best-in-class performance and feedback. Brushless motors like the NEO can ONLY be driven using brushless motor controllers, and will be damaged if used incorrectly.