As widely reported, the race change feature finally went live yesterday, and I jumped at the chance to convert Lightus the Paladin over to a more nobler, if shorter, race.
Not that I'm too much into the arpee, but from a role-playing perspective, I saw my human as more of a Holy-type - so when he transitioned over to a Protection/Retribution dual spec, I started to think of him more as a stronger and tougher fellow.
I debated a bit over the Draenei racials (+hit and insta-heal) vs. the Dwarven ones (mace expertise and Stoneform), but I decided that I liked the look of his current gear on the stouter race better, and Stoneform provides a nice mini-tanking cooldown.
Pictured: I celebrated the successful transformation with epic flight skill and a "need" roll on the Culling of Stratholme drake. :)