I think ti would be stupid of them not to offer a plain option. Most people don't want decals on their car. I think the most popular of the customization options would be just a two tone paint job. Most of the rest will only be bought by the ladies, and even then, it won't appeal to all of them.
I think the idea is to give plenty of bold options so you can find one you like, instead of giving a few normal options that don't tug at your emotions as much.