i would say this is the epitome of followers vs leaders... a significant portion of devs are introverted, and don't have a life outside work, hence being in a social setting like the office is how they make friends and communicate with the world... yes i used to be one of them...
but once you have other avenues of creativity and life, suddenly working in an office is little more than mundaneness... i've been working remote for over 5 years, and usually do my best to hang out with my team ever few months, mainly to bond on a more personal level which can only be achieved in real time. but a week or two every few months is enough to gain that perspective. working remote is blissful.
there are two major problems. most companies are scared of remote workers because they don't have the trust that remote workers can integrate into the culture, and a large portion of people just can't handle working remotely. it's an art to be able to work without a definite schedule (like being at the office for x hours).
open space work environments are bullshit, read the actual studies done and all of them point to more controlled settings, which allow devs to get into the flow which allow them to produce some of their best work and allow the to be the most fulfilled by their work.
my dollar goes way father than the devs living in sf. i can visit when i want and then bail. i'd rather invest in my family, my house, and my hobbies than paying rent in sf or nyc. and yes there are plenty of cities that offer similar awesomeness for way lower price.