Orange are not, IMO, Boutique. My idea of boutique is all that fillet brazed, intricate dropout sporting niche nonsense you see at the handmade bike shows, typically bought by people for whom directional speaker cable is a concern.
I think the argument here is large vs small scale manufacturing.
Large scale manufacturers provide the most bang for the buck through economy of scale. This is great for us, but with it comes a downside. The target market for such products is so vast that their bikes have to have mass market appeal. Fine for say 70% of riders, but too comprimised for the remaining 30.
If you have more specific tastes or requirements, perhaps dictated by your geographic location or trail conditions (what works briliantly for California rarely works so well in the Peak District) or pure personal preference, you have to look to the smaller guys who better accomodate or focus on those requirements. You'll get less for your money, but that's the price you pay for getting what you need.
If you really don't have any such specific requirements, buying from the smaller companies makes little financial sense. Marin, Giant and Specialized are your friends.