Oft repeated opinion is not self-validating. The picture of dwindling support referred to above is imprecise. What we have is an increased variance in support resulting from a changing supporter base. The data reported shows this: we have a seasoncard membership of 37k and a matchday supporter base of 140k.
Seasoncard holders are now less likely to show for midweek Cup games but by their very nature matchday fans only show for big matches. The result is that City struggle to fill midweek Cup games but might be overwhelmed by big matches. The change in the mean is described as 'variance' and readily understood. An increase in variance is what is exhibited at Manchester City.
A solution would be to increase City's seasoncard base but City do not seem keen. I put this down to ineptitude rather than avarice. The 5th column have it that City are out to destroy its seasoncard base because they want to fill the ground with tourists who pay more. This chimes with cynical feelings but it isn't true. City are more inept than cunning.
Matchday revenue per supporter has probably reached a cap now but the wave of US investment in English clubs is based on potential sale of digital content through the internet to a global fanbase. Football will be sold by streaming content, by clubs, to a global fanbase. Matchday fans will be a stage army designed to provide theatre. Global fans will experience enriched content as if they were sat there in the stand with you. In the short term we will see the acquisition of streaming rights by football clubs. Then they will look to enhance the content so that they can sell an experience. All this is entwined in so called super-clubs and super-leagues, and of course counter regulation by some clubs trying to keep new entrants out. Khaldoon is involved in investment trusts such as the Mubadala Investment Group. This is how they think, and he is not alone. The Premier League is now run and operated by American Capital. City even have a second owner, Silverlake investments. Why are they investing in football? It is because of the reach of sport and the unique bond between fans and clubs that can be monetised. It will be done through merging broadcasting and the matchday experience. City do not care too much about seasoncard and city memberships. What they care about is being top of the tree so that when the economics, legalities and technical standards align, they can do this. See also the City Group.