Do you have an unsightly human face or orc posture you're longing to shed? Then by all means, head on over and change that puppy up. If you're playing a puppy, that is. If not, change whatever you happen to be.
Remember it's a weekend sale, so if you're planning on taking advantage of it, don't wait too long. And if like me you actually find yourself changing races because the tier 13 hat looks dumb on your current race, I won't judge. Can't, really -- I just admitted to it myself.
World of Warcraft: Cataclysm has destroyed Azeroth as we know it; nothing is the same! In WoW Insider's Guide to Cataclysm, you can find out everything you need to know about WoW's third expansion, from leveling up a new goblin or worgen to breaking news and strategies on endgame play.