I feel you and I agree with everything you said.
The most ridiculous thing about it is, that it feels so unrewarding - spending fangs to earn fangs? What the actual heck. It doesn’t matter one gets 100-120 fangs from each run, when he has to spend ONE THIRD of it to continue the cycle and earn more.
In my opinion there should be another currency for the lures and tatoos than for the actual reward recipes. It really feels unrewarding, not only to get ridiculous amounts of those fangs from the Champions, but then having taken such amount of it from you, just to continue the vicious circle of dull grinding. 
I’ve also built transportory stones the closest I could to each Champion and also the Jhebbal Sag camp, but even with quickening like this it is really pain in the butt.