Am on satellite internet. When it works, it's kinda okay. 25mbps down are possible and sometimes achieved. On a Friday evening though, the shared medium hits hard. Last week an 'aptitude update' took an entire business day.
So, yeah, I'm gonna assume people who're by every definition smarter than me aren't going to try this kind of 'meh' technology for their own Google Fiber like plans. Ground based RF networks make a lot more sense imho.