Historically big clubs

[Eric the Half a Bee]

Well he's asked a question and my view is its fan base

I am sure other people would think it's something else

So, playing devil's advocate here, if a bottom division side had 40k crowds every week but had never been close to the top flight in its history, that would be a big club, but a side that spent 20 years in the top division averaging 15k wouldn't be?