Generally speaking, isn't CAT6 cable still more expensive than CAT3?
While 66 blocks can accommodate 23 AWG conductors, untwisting the stuff can be a chore.
In the substandard CAT5 cable masquerading as CAT3, the Bl/Wh and Gr/Wh pairs have looser twists than the Or/Wh and Br/Wh pairs.
