Thks tmsn for ask the details, I'll be over next time you're out for a few hours with the cable cutters and a rented van.
Don't worry, I won't eat your porridge or sit in the little chair.
There is some value there, but no carbon and no high end racing groups. Most of the value is to me since I built more than half of them up with the specific components that I wanted. So, I am not too worried.
The Rohloff hub is probably the most expensive single item, but Rohloffs are so rare in USA that almost nobody knows what it is. I have had a few people ask me why I have a single speed electric bike, they think the Rohloff is a motor. One of my neighbors is a bike mechanic, he told me that my Rohloff is the only one he has ever seen.