10Gbase-T does 55m with Cat6, or the full 100m with Cat6A, both of which are ubiquitous and cheap. It's probably more to do with the expense and power consumpti

10Gbase-T does 55m with Cat6, or the full 100m with Cat6A, both of which are ubiquitous and cheap. It's probably more to do with the expense and power consumption of 10Gbase-T PHY's.