live music events where the music has a very folkish vibe
...
and a lot of this stuff is generational

What if the "folkish vibe" is generational as well? Maybe it's just what I've heard, but it seems to me that if you went shopping for nu- psych- alt- whatsit-folk with the sole proviso that you didn't want to hear anything that sounded like Hunting Song or Reynardine you'd have a pretty thin time of it - and if you said to your nu-folk personal shopper "and nothing like the String Band either" you'd be going home empty-handed. These are records - and styles - that are 40 years old now, if not more. I'm not denying that there's lots of music being made & appreciated out there, but I wonder if what's basically a retro style is going to have the staying-power of old songs.