I really am not negative camber hater (I know there is a ton of sub cultures in the car world). I can handle 5 degrees done just for "looks" but much more than that it starts to get silly to my eyes.The only way this could be awesome to me is if they could fly around like the Back to the Future Delorean and have hover jets coming out of the bottom.
I think usually 1-2 degrees of negative/positive camber is the typical range people use to avoid uneven wear. Much more than that you will be going through tires quite a bit.