The cable length is optimal to as mobile devices to connect without the clutter of wires to above systems, the wiring of an entire room (for example, build the stereo o. Ä.)
you should of course take up correspondingly longer versions, especially when you consider that for twice the price already the 10m version gets (with socket).
If durability and longevity of the high-quality optics be correspondingly, the premium over cheap cables in 1 euro range is justified so far I am in any case completely satisfied with the cable.