I think the 36 years of oblivion not only damaged the numbers of people deciding City was their team, it also mentally changed those already supporting. I'm 50 and as I look around me this makes up a huge proportion of the demographic that currently attends. For me personally, much of that 36 years was about wanting to be proud of my team, the chance to be credible and not be an embarrassment. I measured everything we did against United's success and to be honest it was an awful time and my whole footballing mentality was not necessarily to win a trophy, as that just seemed too far fetched, but to beat United if our paths ever crossed. My desire for success was more an ambition rather than an obsession. That semi in 2011, the 6-1, Kompany's header and that moment in 2012 was only so good because ultimately it was in those moments the demons of United were finally slayed. With the success of 2014 and last year's 100 points, it feels to me we have finally washed away the stain of United and in effect for many of us realised our ambition. It's only natural I suppose that some fans support starts to drift slightly because as I previously stated, our success was always more an ambition than obsession and once achieved many will feel they can walk away and redemption has finally been achieved. I know that sounds sad but it's the hard facts. I travel for 2 hours 30 minutes to home games and each game probably costs me 8 hours of my day and £80. Justifying the commitment is further undermined in that when I arrive home some of my friends have streamed the game, spent no money and have saved 6 hours time doing other things. As you can imagine, every time I find myself stuck in traffic I find the continuation of my attendance a real point for consideration.
My final point is the CL lack of interest and it's kind of linked to my original point. I don't believe any City fan has genuinely dreamt or indeed ever been obsessed with being the best team in Europe. I know I haven't and as sad as it seems I believe that many of us would readily accept beating United home and away each year rather than winning a European trophy if that was at the expense of being the top dogs in our own city first and country second.
Unfortunately I suppose what we see now in empty seats is the harvest of decades of failure and its impact on new younger fans, coupled with the TV/Streaming services offering the once sacred product without the cost or need to travel. If I'm honest I don't see a ready made solution as I'm fairly certain the core match day fan will be continued to be partially replaced by a latter day tourist coming to occasional games. The real disappointment here is that City seem happy how it's going so little will change.