In a surprising and stunning move, Blizzard has just launched a real money online in-game pet store. You spend real money, you get an in-game pet. This fully brings Blizzard into the world of microtransactions -- even if the cost of $10 for one of these pets isn't exactly micro.
While these are just vanity items, one has to wonder how far Blizzard can take this microtransaction model with the largest MMORPG game being played today. They already offer (and offer quite successfully) realm transfer, name change, character re-customization, and race and faction change services. This appears to be the next logical step for them to take. Could the next offering being in-game vanity outfits? A valid question that only time will answer.
The first offerings of microtransactionable in-game items include a Pandaren Monk pet and a Lil K'T pet. Half the proceeds from every Pandaren Monk pet (and only the Pandaren Monk) will go towards the Make-a-Wish foundation -- which is a nice gesture to a company Blizzard has previously supported.