The demand is not limited to americans, most third-world countries will benefit from having high speed internet unconstrained by local infrastructure and lack of investment. Having stayed in South East Asia I know the locals would very much appreciate having more than one option: pay-as-you-go mobile data bundles.

Even in rural parts of Scandinavia where I spent my vacation, 4G signal was too weak and ISP's refuse to lay fiber unless the whole neighborhood commits to subscribe.

This may concern millions of people who need basic or better internet access, meanwhile there are only a few thousand astronomers in the world.