i like it but i think i can only do it with one character, as opposed to skinning which i don't mind doing with all my chars. herb is fun, you always run out of your way to grab something you see on the radar. i've even taken time to kill stuff in the area, just so i can get that one herb which actually is not even rare, before i go on my way again. this is why i'll probably only do it on one char.
with skinning, i dont need to kill every beast in my path. but i love it when someone has killed a string of beasts and left the corpse, and i can just follow the trail up to them.