Eh...SpaceX has investors knocking down doors trying to throw money at them, even before starlink was announced. They'd be fine without starlink, though I am excited for orbital internet.
Investors is one thing, customers another. It is possible customers will appear, but most uses don't seem to need many launches.
Even a really big telescope doesn't seem to need more than 50 launches, $2.5B. A moonbase needs fuel depot runs in the tens per year, and the occasional crew exchange, all under $1B/y.
