I currently live near the top of the hill of Queen Anne, my options for internet are Comcast, or Comcast essentially. Century link is also up there with a plan for a whopping 7mbps of speed down and less than 1mbps up. Comcast offers a plan for 50mbps down and 10mbps up, I need more upload speed, but I can make do with an upload running for hours a day. This wouldn't be bad if Comcast actually worked, but it doesn't. Probably 2 or 3 nights a week my internet becomes near unusable during peak times, I resort to putting my cell phone on LTE and seeing what I need to that way, I can't even keep up with the buffer rate on the lowest quality Youtube videos.
Downtown though, there are a number of apartment and condo buildings that offer 100mbps up & down internet for $60 a month (compared to my $75 for Comcast), or 1gigabit up and down for $120 a month(not available from Comcast at all). So, we do have some gigabit internet, and I've actually found a few places I'd consider living and likely will affect my decision when I eventually move.
At least in my neighborhood, Comcast has terrible(often broken) service with absolutely no alternative. I suppose maybe the density of Queen Anne can't justify the cost of gigabit fiber to the top of the hill, but given how many Microsoft and Amazon people live up here I'd be shocked if there weren't huge interest. This seems damning as to the economic viability of fiber that a relatively dense upper income neighborhood can't get fiber without government subsidy.