Starlink has a hard limit on how much it can grow. If you are within the reach of wired Internet, you aren't going to pay more for starlink. As terrestrial coverage continues to increase, the potential market shrinks. Basically mobile devices is what their market is. Aircraft, ships, etc.

I don't know what to think about data centers in space. It's hard to see how it could be cheaper than terrestrial. Plus, if you actually have to service any of those space assets, it's going to cost a fortune.

Asteroid mining doesn't make sense to me unless you are going to use those mined resources in space somehow, and that seems far off.