A lot of us have probably had this problem before: We join a guild, and we like it. It has the right combination of people we like (or can tolerate), interests we share, and or what have you, and we're doing fine. Unfortunately, there is the problem. The tabard sucks. That whole green crying bear on pink background thing is just so tacky, and does not go well with any of our stuff.
Sure, you can replace it with one of the factional tabards, in theory, but not until 70, and not until you grind exalted, and most of those tabards don't look much better anyway. Wouldn't it be nice if you could just go design your own personal tabard at your local town hall instead?
That may be coming. In a thread by Beta tester Talid, Tigole said that the idea of personal tabards was actually pretty cool, and that he'd look into it. Yeah, admittedly, that means personal tabards could be in before Wrath goes live, or it means they could be a year off, or they could still discard the whole thing.
Still, it often seems to this WoW Insider staff member that getting Blizzard to agree to any major type of personal character customization is like pulling teeth, so seeing Tigole act favorably toward this is pretty exciting. It'd be a great gold sink or achievement reward for Wrath.