As much as i think fit is important, I think one of the key factors that people downplay is the uniqueness factor.

There's nothing much cooler than having a bike that nobody else has, one that was made specifically for you, that you had a hand in creating.

In some ways, a consumerist lifestyle is a destructive thing, so to create something that's unique, individualist, sustainable, and as an added bonus the worlds most efficient and beautiful machine are factors that shouldn't be discounted, I reckon.