It's all about the TV show. Without that, those two businesses would have folded long ago.
Leave the custom cars up to guys like Foose. TV doesn't do a lot of his cars justice. I saw one of his Mustangs in person a few years ago... freakin awesome. He knows how to use the lines of a car in a good way, and really has an attention to detail.
I like the way his two tones kind of stand out as his. I walked up to a '68 Mustang at a car show that was two tone dark gunmetal gray and silver with some yellow/orange pinstripes. I mentioned to my friend that it looked like something Chip Foose would do... and he walked up behind us and said - yes I would and did! Stunning paint work and complimenting color use.