This does read like a slight snark (the step from 'fringe' to 'mainstream' - who wants to be mainstream?). It further emphasises the point that in the 80s and early 90s looking for non-local 'long tail' music as a youth was pretty much impossible. Especially if / when too young for bars and concerts, all you could find had to be signed on mainstream labels. I had the luck in that I could go to local concerts, thus discovering local talent (and buying their cassette tapes). You needed venues and allowing parents for that. Currently listening to several artists with < 500 streamers a month on Spotify. Nothing in the 80s and 90s can compare with that discoverability.