High-end gaming monitors like the ASUS ROG Swift line can be worth repairing when the failure is a replaceable component (power supply, port board) rather than the panel. If the monitor shows stable image quality but has intermittent power, dead inputs, or OSD/control problems, repair can extend useful life without sacrificing performance.
Replacement becomes more compelling when there are panel-level defects-persistent burn-in on OLED variants, widespread stuck/dead pixels, severe image retention, or vertical lines-because panel replacement is often near the cost of a new monitor. Also account for how quickly display tech moves: if you're already considering a size/refresh upgrade, replacing may deliver better value even if repair is below the threshold.
When repair quotes climb toward the threshold, prioritize replacement to reduce the chance of recurring failures.