you'll also find that they downspec' things like cassettes, chains, bottom brackets, hubs and headsets.
again, speaking from my own experience with Cane Creek, I find it truly sad how many high end bikes fit the low end Cane Creek headsets to their bikes out of the box.
When you're spending $4k to $7k on a boutique mtb brand (*cough* Santa Cruz) you could at least spec' a higher level headset to your bikes... geezus.
On our ti frame build kits, we fit either 40 series (XT quality) or 110 series (XTR level).