In today's saturated sports and entertainment landscape, attracting fans to live games is no longer driven by the game alone. To compete, venues and their surrounding districts must deliver something screens cannot: an intentionally designed, customized, end-to-end experience that feels worth the trip. Playfly Sports has identified a 45% blind spot in mixed-use developments: the difference between revenue generated from comparables-based (comp-based) commercial projections and the revenue these districts could generate if commercial strategy, fan intelligence, and sponsorship were integrated from the earliest stages of design. This report outlines why mixed-use districts must be designed as media platforms, not just physical spaces, how data-driven fan intelligence and valuation influence design, pricing, and partner demand, and why early commercial integration is no longer optional.