Do you want more cool stuff like James Webb in orbit? Fully reusable huge rockets like Starship is how you get them there.
Also, remember how JWST had to do that incredibly complex and fiddly in-orbit expansion and alignment to fit together the mirror after launch? If Starship had been available at the time, this would have been far easier, since Starship has twice the diameter (four times the area) of the Ariane rocket they used to launch it.
Besides that I really really wished it wouldn't be Elon Musk, i'm looking forward to cheaper stuff so its easier to send science stuff up. Don't get me wrong at all.
But it feels like hyperbole.
Pure technically speaking, if you can fly a rocket up and control it properly, whats the crazy thing flying a rocket back down and controlling it?
Or do you see it more like a milestone seeing?
And for me, it still feels like if Elon Musk tries his Dataenter 'idea' and really sneds up everyday a Starship, we will lose a lot of control as normal humans whats going on in space and what will happen to our atmosphere.
Can Starship get to L2?