I was in Deepholm because I decided I wanted an S/S Emerald Shale Hatchling, and I came across a white Crystal Beetle. It's the only white beetle pet I've seen, so I decided I want one. However I want it to replace my H/H that I already have.
I was beginning to wonder if the H/S was the only one that came in white, seeing all the white ones I was finding were of that breed, but I finally got a white H/H. It's not rare, but I like it—I'll just use a stone on it.
Hunting for color is different than hunting for breed, because chances are the color you want is not common. The crystal beetle comes in that dark color by default. So to get a white one there's a 1 out of 3 chance that it will be the breed you want, then a small chance it will be the right color. And if you want it in the right breed, color, AND RARE... Well, I'll just settle for stoning the one I got, after looking for a few hours last night and a few hours this morning.
The only other pets I've hunted for color were gold Scorpions and red Crabs. Several of my crabs are red; and I have a Leopard Scorpion and a Scorpid in gold, as well as the Durotar Scorpion (which only comes gold).
And while I was out farming the white Crystal Beetle I found a rare, blue, S/S/Fungal Moth—though I'm not sure whether I like the blue or the white better.
So am I nuts, or are there other people who have color preferences with certain battle-pets? ...Or are we all just nuts?