And yet, somehow I still don't think that khorium is the worst thing in the game to farm. Off the top of my head, I can think of others that are or have been equally bad or worse:
- Non-combat pets A lot of farmable non-combat pets (e.g., the dragon whelps, the firefly, the Fox Kit) have a 1-in-1,000 drop rate and a limited number of mobs up at a given time.
- Combat pets Waiting for a particular pet to spawn somewhere and then finding and taming it before someone else does can be maddening if you're consistently unlucky.
- Fishing Accomplished Angler is justifiably famous for being stuffed with requirements full of RNG. Let's talk about the year it took me to get Mr. Pinchy's Magical Crawdad Box! On second thought, let's not.
- The Scepter of the Shifting Sands quest This disappeared in Cataclysm, and with it went all the work that went into farming up bug parts and Elementium Ingots, which is where I got stuck in the chain. (So close, and yet so far.)
- The Insane This almost goes without saying, although it's easier these days than it used to be.