Perhaps I'm missing something, but can't you get all the benefits of a belt drive with a chain enclosed in a full chaincase [very low maintenance] at a much lower cost?
Can't you get all the benefits of your folders and utility bikes with Worksman bikes at a much lower cost?...all the benefits except low weight.
I like the belt concept, but I think it will always be more expensive because I understand that belts require finer tolerances than chains.