The price of a CNC router is primarily driven by its spindle power, motor type, and control system. For entry-level tasks like woodworking, a 3kW to 4.5kW water-cooled spindle is cost-effective, while heavy-duty stone or metal cutting requires 6kW+ Italian HSD or high-end Chinese air-cooled spindles. You must also choose between Stepper motors (cheaper, suitable for simple tasks) and Servo motors (Leadshine or Yaskawa, higher cost but offer better precision and speed). Always verify if the price includes the DSP handle or a PC-based Mach3/Weihong control system, as these significantly impact the final quote.