Definitely agree that Starlink payloads are the only ones that will fly on the more umm... mature boosters. If they get to 5 and up, it is on Starlink missions.
I'll answer this here since it is more relevant on this thread.
Too true. I think buyers are comfortable with the first, second, or third launch of a booster. Four or more is pushing it until there is lots of examples of those having no issues. The reality is that there have been zero issues with a payload reaching its intended orbit. So their fears are unjustified until proven otherwise. The other fact is that there are enough boosters available for now to cover any and all commercial launches needed. SpaceX has six more new boosters coming from all the crew launches. Probably a few more from military launches where new is also insisted upon. That will cover about 50 more launches at least.