The idea is great, having a company specialize in custom enclosure design and manufacturing, the only problem is the way it's being carried out.
Firstly, the price. Uniqueness and one-of-a-kind is something you cannot really place a price tag on, granted. There is a fee you always need to pay to have something nobody else can have. But $1500 for bare metal, even if it includes labor and design, is to me off the charts.
Secondly, the details. For that kind of money, and design, I would expect the finer touches of a power button, leads and other standard case gizmos. When you are out to exceed your customers expectations, the finer points mean everything!
As for the paint, I guess that is preferential to everybody. But it wouldn't hurt to offer a few basic colors for that price, save the real work for the folks at smooth creations.
To be honest, if you can assemble a complete PC for yourself, if you live near a hardware store and you have your own big-enough workbench, you might as well go out and build your custom case yourself, as I did, and do your wallet a great favor.