I'm in Silicon Valley, and outside of SF (where the ISP market isn't a monopoly), a gigabit from Comcast costs ~$300/mo. It still seems absurd to me that I'm 20 minutes from companies like Apple and Google, but getting decent ≥100Mbps Internet is expensive and challenging.
(I pay for "business class" however, so my bill is slightly more expensive per Mbps because of that (the $300/mo above is residential, though). But I get an almost nearly static IPv4 address, and customer support that's only moderately bad, as opposed to the residential level support which beyond bad.)