Enjoy the racials while you can. I believe Blizz is going to be balancing things a bit more. But don't see the big advantage to Horde racials. Alliance, escape Artist, Every Man for Himself, Stoneform etc...

I've never leveled past 25 ish on the Horde side, I plan on doing it while my RAF is active.

The game is all about having fun, so if going Horde is fun for you, then....For the Horde