The first is knocking over the head pin, taking the beachhead, crossing the chasm (and chaining together three mixed metaphors to do it!). The size of the first pin is not the issue, but the economic value of the problem it fixes is. The more serious the problem, the faster the target niche will pull you out of the chasm. Once out, your opportunities to expand into other niches are immensely increased because now, having one set of pragmatist customers solidly behind you, you are much less risky for others to back as a new vendor.