This firmly brings WoW into the arena of microtransactions -- purchasing in-game items for real life money. Some games, not WoW, allow you purchase items which make you stronger in the game. Other games, like WoW, allow the purchase of vanity items, such as these pets, which do nothing other than look cool or count towards vanity achievements. Some people really don't like this model of gaming, others are indifferent, and others are in love with it.
I'm personally in love with it. I think the items are cheap enough to be affordable to a large portion of the player base, and are cool enough to warrant the purchase. Further, since the items don't provide in-game power ups for people, they are essentially meaningless toys. This makes it an ideal luxury item for the virtual-nerd to spend $10 on. So will I buy the new in-game pets? Absolutely, I already have.
But what will you do? Are you going to go out and buy them? Vote in the poll and leave a comment, we want to know.