There are really cheap commodity ICs that can switch HDMI, and they're generally purely analog devices that don't bother trying to reclock the signal. The real

There are really cheap commodity ICs that can switch HDMI, and they're generally purely analog devices that don't bother trying to reclock the signal. The real reason is that KVMs are specialised devices with a niche market. (Though there does seem to have been a bit of a push to integrate limited KVM functionality into some monitors lately.)