I think the very most interesting point made in the huge, labyrinthine thread as reaction to the last BBC documentary was Kegsy's point about Wigan being the scene's only truly 'pivotal' venue. Quoted below:
"I'm not sure what you mean by pivotal, the only one I would call pivotal would be Wigan because it completed altered the scene with the mass influx of people who didn't know the first thing about SOUL music. Lets face it if your introduction to the music was Javells, Nosmo King or Wigan's Chosen Few its hardly a good grounding. Contrary to popular opinion the scene was/is, before and after Wigan, a scene where people went to dance to SOUL music. Contrary to popular opinion the scene was never just about 100mph up-tempo stompers, although when coupled with a soulful vocal they can take some beating. Many records played at Wigan diluted the soul content at the expense of the stomping beat. Cleethorpes Pier managed to get the mix between 60s and 70s releases just about right so it provided a venue where the people who were into SOUL music could go, and not just listen to the 100mph stuff. It combined the best of the Mecca and Wigan so at the time it was pivotal IMHO. Many people at the time were royally pissed off with the Wigan/Mecca war and just ignored both by going to Cleethorpes, which had taken up the gauntlet of the true underground SOUL scene. There are times when I wish Dave Godin hadn't bothered to coin the phrase Northern Soul, because for some people, it put more emphasis on the beat than the soulful content of the music."
To me that's the crux of this question too.