Yes, but the question is what fraction of the population is in these niches and does that provide enough subscription revenue to fund the constellation?

If many others find a cheaper and more reliable path, the customer base collapses.

Well, my point is that these niches are probably more commonplace than people who live in areas blanketed by multiple 5G providers probably assume. I'm sure there are Starlink customers using it as an option in some interim period while they wait for fiber to be rolled out to their neighbourhood or town, but anecdotally, I don't know any Starlink customers who are in that boat. We exist in locations that will not be served by cheaper, more reliable terrestrial options anytime soon.

Even "cheaper" is quickly becoming a question mark. Starlink is offering 100mbps plans for $50-$70/mo. which in my region makes it cheaper or on par with options from cellular providers (which are capped) or options from cable/fiber providers.