Considering the game will be as good or even better than the first, I'm sure most of us will play it more than once, or twice, like we did in the first game, in different difficulties and such.
A different skin only makes it more enjoyable and a little different in the new playthrough, like when we use the alternate armor in the Challenges Mode in AA, even though that wasn't a huge departure from the original.
Or at least I think it is like that. Why would fans always want it if not for this? That's why I like it.