Comment by runako

Starlink solves for a problem where there is not a good alternative: high-speed Internet access for rural environments. Land-based solutions for this are potentially even more expensive than putting satellites in space.

But clearly Starlink is not competitive with widely-available residential Internet access offerings, and nowhere near what is expected of terrestrial data centers. People use Starlink when there are no other good options. In the urban areas where most people live, people use land-based ISPs because they are cheaper and better.

An example, by contrast: Trammell Crow is planning a 12 million square foot data center campus in Georgia that will be infinitely more maintainable and have access to better Internet connections than anything space bound. At $8.4B, it will be significantly less expensive than space bound alternatives.

There are better options than space for data centers, so space data centers are unlikely to be a thing. (Someone will probably do a trial for PR though.)