[seanmcdirmid]

You moved for a startup because it was a great fit for your skills, the startup failed...now what? If there are only a few other startups, what is to say one will be a good fit? Also, your network isn't fully developed yet, maybe you've only been in town for 6 months...getting the right job via word of mouth will be very difficult.

If you don't believe developers are basically exchangeable commodities, then it is easy to see that we need a very large pool of jobs + a decent support network to find those jobs.

SF having critical mass of startups and people you already know (they moved from where you were before) makes it very appealing. SLT has none of that.