I know the devs care about whether some of them can speak Basic properly and all, but they're just skins really, and many of them already have different models in the game.
I'd pay up immediately in order to play as a Selkath or Mon Calamari. Hell, even Ithorians would look cool. Neimoidian, Kaleesh, Rodian, Nikto, Togruta are rather easy additions, for example.
So, what's the hold-up?