I disagree to some of what you said; sure if your in China you may have trouble getting Shimano or other parts BUT your going to have a better time at least getting it fixed then you would a Rhollof hub. And internationally the most commom tire and tube size is the 700c and 26 rather then the 20 or 16 inch tire Bike Friday uses. And if you reduce the complexity of the operating system your more then likely are going to able to fix it yourself or find someone who can. Evidently Phil Woods disagrees with your statement about something being "field serviceable" because his hubs and bottom brackets are designed to be just that " field serviceable", and why? Because he sells a lot of these components to the touring crowd.