In this case though it seems applicable to at least some sub-set of startups.

Our company, admittedly B2B focused, would not be where it is today if we hadn't engaged strongly with a large customer right off and made them impressed and happy with our service. Not only did that secure a solid revenue stream, but it gave us a great referencable client, and people who were bring our name up in conversations just because they liked what we did for them.