Determining the ideal number of prizes for your toy crane machine requires balancing several important factors. The machine's physical size and prize dimensions are primary considerations - larger machines can accommodate more items, while bulkier prizes naturally reduce total capacity. Most standard machines perform optimally when filled to approximately 60-70% capacity, creating sufficient density for successful grabs while maintaining challenge. Consider your prize value and cost structure; higher-value items may warrant lower quantities to protect profitability. Player psychology plays a crucial role - machines appearing too empty may discourage play, while overly crowded machines can appear too easy, potentially reducing the perceived value of wins. Regular observation of play patterns will help you fine-tune your approach. Monitor how quickly prizes are won and adjust quantities accordingly during restocking. Many operators find that creating visible prize layers with different item types encourages continued play. Remember that proper prize distribution affects not only profitability but also customer satisfaction and compliance with local regulations regarding skill-based amusement devices.