3D打印机、无人机、运动相机，成了“吃灰三件套”

Core Viewpoint - The article discusses the phenomenon of "dust-collecting three items" (3D printers, action cameras, and drones) among young consumers, highlighting their rapid depreciation in the second-hand market and the fleeting emotional value they provide [5][6][16]. Group 1: Consumer Behavior - Young consumers exhibit a pattern of impulsive buying, leading to quick disillusionment with products that do not meet their expectations [16]. - The depreciation of electronic products is significant, with examples showing drastic price drops in the second-hand market, such as a 3D printer originally priced at 2300 yuan now selling for around 1900 yuan [5][18]. - Many consumers, like Wang and Shan, experience frustration with product performance and customer service, leading to a cycle of purchasing and reselling [8][12][15]. Group 2: Market Dynamics - The second-hand market for these "dust-collecting" items is thriving, with platforms like Xianyu and Zhuanzhuan seeing increased transaction volumes, particularly during promotional periods [24][25]. - There is a notable phenomenon of new products being cheaper than second-hand items, driven by brand promotions and market competition [25]. - The 3D printing market is experiencing significant growth, with companies like TuoZhu Technology projected to achieve revenues of 60 billion yuan in 2024, indicating a robust industry despite consumer behavior challenges [28][29]. Group 3: Competitive Landscape - The competition among companies in the 3D printing, action camera, and drone markets is intensifying, with established players like DJI and emerging companies like YingShi engaging in price wars and product diversification [30][32]. - The market for 3D printers has seen a 60% price drop over three years due to domestic component replacements, making it more accessible to consumers [25][26]. - The growth of the second-hand market is beneficial for companies, as it helps circulate products and potentially boosts sales of new, higher-margin items [34].