UX grumpiness.
If you're running a medical services building and want to upgrade your directories from classic etched-names-on-swappable-plaques to touchscreen kiosks, you probably don't want a wall-mounted screen so large you can't really interact with it and read it at the same time, especially if it displays in a resolution that differs from the LCD panel resolution so small text becomes unreadably fuzzy.
Unless you're Cabrini Medical Tower in Seattle, apparently. *rolls eyes*