alt Hacker News> This has been done.
Yeah, I've been to low double-figure gigs[0] where they were selling soundboard CDs shortly after the gig. If I'm not mistaken, a bunch of them were being done by the same company (but an internet search is unproductive.)
[0] In London, I want to say late 2000s, early 2010s?
I just stumbled across the fact that apparently Bruce Springsteen has an active subscription service allowing people to listen to recordings of his live shows. A bit on the pricey side, imho, but it does at least exist.