CUDA, a parallel computing platform and API model developed by NVIDIA, presents a complex picture of advantages and challenges depending on the perspective of its users within the AI ecosystem. For AI engineers building on top of CUDA, its maturity and dominance offer significant benefits, such as seamless integration with NVIDIA hardware and industry-wide collaboration. However, this comes with persistent challenges like versioning issues and driver incompatibilities. AI model developers and performance engineers, who require cutting-edge performance, often find CUDA both essential and limiting, as they work around its aging infrastructure to harness the full potential of modern GPUs. Despite its limitations and complexity, CUDA remains the backbone of NVIDIA's dominance in AI compute, securing its market position but simultaneously creating significant technical debt. This dominance, often referred to as the "CUDA moat," underscores NVIDIA's strategic advantage but also raises questions about the lack of viable alternatives in the rapidly evolving AI hardware landscape.