I thought the same was true for the Bay Area, hence why I moved here. I was genuinely surprised to find Google Fiber isn't even available, let alone any mesh networks.
In all other aspects of technical expertise though it's blowing my previous city, Houston, away. Companies open to candidates based on technical expertise alone (rather than throwing non-B.S. degrees straight into the garbage), lots of great meetups, lots of fellow geeks doing exciting work.
Actually, another thing that surprised me was lack of hacker spaces - Houston seemed to have the same amount of them... one. The only major one I'm aware of here is Noisebridge, same for Houston which has TX/RX.
edit: oh, apparently SF has quite a few more than I realized. So does Houston, but not as many.
I wanted to like Monkeybrains but they were just too subpar for the competition in terms of speed, reliability and flexibility. I switched to sonic and get 1GBps fiber for barely $12/mo more than what I paid MB.
For some reason they offering only 10Mbps in my building in downtown SF... compared to the 150 I get through Comcast. I hate their guts, but they do at least give me pretty darn fast internet.
I know people doing this in Detroit on a smaller scale. The nodes are I believe using cable modems, not 20 GB connections. But it's free because they have money from a foundation and it's all volunteers. It's all about getting the poor on the net.
Unfortunately it's limited to very few places and is practically non existent if you consider Brooklyn as a whole.
Meanwhile Brooklyn has Verizon fiber gigabit network and supposedly getting one from Altice too. Two gigabit fiber ISPs in one place would be something quite unique.
Could you maybe elaborate on some examples you have in mind?
I'm strongly considering accepting a job offer for a company in NY since I'm starting to get bored of living in Seattle. I figure moving to NY would mean being surrounded by more people and having more opportunities to collaborate on projects like these.