It also seems to me that there is at least some qualitative difference between custom work that you have done yourself, and custom work that was done by someone else. I suppose you can throw enough money at a bike to make it one of a kind and never actually touch the thing, but that somehow seems to lack the cool of having gotten your own hands dirty. Its like if you do it, its yours, if someone else does it, well maybe its not really yours.
Then again, I suppose there are many projects where just the creativity to come up with something unique is worth having someone else do it in order to have it done well.