I firmly like to stay in the 20th century!
More and more motherboards do not accommodate PS/2, and many that do are not "true" PS/2 but rather have an internal USB "adapter" anyway. And then there are power consumption issues.
Personally, I despise heavy coiled cables, but many people like them.
Last, I mis-spoke earlier. These specific cables will not bring "any" M to life, only the SDL ones.
But Orihalcon surely makes something that will bring them to life!