I couldn't afford the almost 1 million gold required to craft them, so I just spend 300k gold all up buying them.
The failure wasn't in the legendary, it was in the daft method used to craft them - it meant that for the first time they had crafted legendary items - most couldn't actually craft them.
What they SHOULD have done was have the pattern learning for making the BoE versions, and allow everyone to make their own BoP ones.