> Were those payloads enough to pay for a second SpaceX though?

Today, probably not. When SpaceX announced "Falcon 5 and Falcon 9" as "the world’s first launch vehicles where all stages are designed for reuse" [1], the world was launching 55 payloads a year globally [2].

[1] https://web.archive.org/web/20080815163222/http://www.spacex...

[2] https://en.wikipedia.org/wiki/2005_in_spaceflight