The talk of the RnR music scene at that time was how the Rolling Stones were overtaking the Beatles as the premier RnR band so there might have been some media "persuasion" in coverage of that concert.
Perhaps so. I wasn't alive then, so all I can do is speculate.
I've been trying out those WebSDRs that are popping up on the Internet, and I'm noticing that SF's AM station lineup is remarkably dull compared to numerous others I've been sampling (for example, Seattle, WA has KIXI 880 AM, which plays a mix of oldies, swing-era Big Bands and classic radio shows; Lafayette, LA has KVOL 1330, which airs a "soft oldies" format (MeTV Radio); and of course Fresno, CA has KYNO 940, airing a revived Drake-era Boss radio-like oldies) format. Oh, and I just realized there's KBZZ 1270 in Sparks, NV that airs a classic rock format (KYNO and KBZZ fade in here in the east SF bay after dark, but it seems one has to be something of an expert at DXing to receive them well).
SF
used to have KFRC 610 AM (oldies) and KABL 960 AM (oldies/standards) which were the main, local oldies stations for quite awhile, but since they flipped to religious (610) and business news/talk (960), there has been virtually nothing to fill the void.
I guess at least some of this is related to demographics, but how come other markets can still have AM oldies stations that are doing relatively well and SF can't?
As far as FM, the situation is somewhat better: 80s+ on 103.7 FM, but there's still almost nothing for anything older.
Oh, well. I guess I'm destined to be forever at odds with demographics.
c