Why would a low income household want to pay $120 a month for Google Fibre when they might be getting by on $20 for a cable connection? Yes you get more bang f

Why would a low income household want to pay $120 a month for Google Fibre when they might be getting by on $20 for a cable connection? Yes you get more bang for you buck but what possible applications of high speed internet could justify $100 more a month? In my opinion Google Fiber is being marketed to the common people prematurely. There is no clear justification for it yet unless I'm missing something?!