Most people buying a high-end monitor spend real time researching panel technology, refresh rates, and color accuracy, then plug it into the cable that came in the box without a second thought. That cable is usually a budget part from a generation or two ago, rated for a fraction of the bandwidth the display actually needs. That's the problem. You have to stop pretending that the cable is part of the whole package; it's more like a bonus when you pick the right monitor for your PC.