Wow, yeah, thats all quiete costly. If Musk's Starlink wants to get people in 3rd world countries as customers, prices have to come down a lot. $100 a month is more than many people earn there.
That cable service price is similar to here, only here they don't charge that much for the installation. I pay about €30 for a 16 Mb flatrate DSL. But I live in a city.
Its not that fast though, concidering that some PS4 games today are 150 GB downloads, or 4k movie streams use 4 GB per hour. Fast mobile phone net would be a alternative, it works ok here - but it is too expensive for such data volume.