Price variations are often dictated by technology integration. Thermostatic valves, which maintain a constant water temperature, are more expensive but highly valued for safety. Air-injection technology (oxygen-enriched water) provides a pressurized feel while saving up to 30% water, making it an eco-friendly selling point. Multi-function sets including rainfall heads, handheld sprayers, and body jets will naturally command higher prices. Digital displays that show real-time temperature and duration (often powered by water flow via a micro-turbine) are currently trending in the smart home segment.