The document discusses the limitations of using multiple standalone NVRs for displaying camera feeds versus using a single NVR server connected to multiple displays. It notes that using multiple NVRs results in issues like limited channels, syncing problems during playback, cabling clutter, and higher costs. In contrast, a single NVR server can connect to multiple displays, avoiding these issues while allowing for a larger viewing area with multiple camera grids on each display at a lower overall cost.