i don't see why i would pay for it as it would not require any extra assistance from SE or anyone to change the look of my character. In-game money? Thats ok.
Barbershops to change haircuts and hair-color (need more haircuts too) and maybe special items to change the other features. More tattoos (cool tattoos, no marker scribbles on the face)

PS: i love it how no one wants to post the 10th post on a page in long threads... they always go down till someone makes the 10th and then BAM 9 new replies