Designing arcade machines with modularity for future upgrades requires careful planning to balance performance, cost, and user experience. Key considerations include hardware compatibility, ensuring that new components like PCBs, monitors, or control panels can seamlessly integrate without major structural changes. Standardized interfaces and connectors are crucial for simplifying swaps and reducing downtime during upgrades. Another factor is future-proofing, where designers must anticipate technological advancements, such as higher-resolution displays or new gaming software, and incorporate expandable slots or mounting points. Maintenance accessibility should also be prioritized, with easily removable panels and tool-less entry points to facilitate quick repairs and part replacements. Additionally, thermal management and power supply scalability need attention to handle upgraded hardware safely. By focusing on these aspects, manufacturers can create arcade machines that remain relevant and cost-effective over time, enhancing longevity and customer satisfaction.