Poorer, rural countries like 20% of the US. In rural NC, my brother was paying over $100/mo for 2mbps down cable Internet as 2021.

Starlink's customer acquisition cost has dropped $600 (or whatever they were losing on each antenna), so they can afford to advertise way more than before. If they can pick up a decent portion of the 60,000,000 rural Americans, that's a huge revenue stream (and huge market power, for whatever that's worth).