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.)

For what it's worth, I'm getting 1,000Mbps with AT&T Fiber for $75 a month. I'm located just an hour northwest of Atlanta, in Rome, Georgia.