I'm a season ticket holder since 1973 and sit in E1 block 102 and whilst it's not the most vociferous block I did notice last night that the atmosphere was appalling however no different to most of the last few seasons of CL games. A couple points I just wanted to make.
1, Attendance - I think the attendance is the major reason for the muted atmosphere, however looking back to the 70s when I enjoyed my first European games I can see the apathy of a lot of City fans to European competitions. Our first game back in Europe for over 5 years was a glamour tie against Juventus in the UEFA Cup (This was seen as virtually akin to The European Cup at the time) in 76/77 season. The game was not live on TV, Football was still very much financially accessible for the 'working class' and the attendance was 36,955 that season at home to Stoke their were 39,878 present and the average league attendance was 40,058. In 77/78 in our first European home game we played Twente Enschede and only 29330 fans turned up in a season where our average league attendance was 41,687 again the game wasn't on TV.
I think we have to realise that we have, and for many years had, a core fan base of between 28k and 30k who will attend at all odds a home game. The rest is made up of fans who take in one or two league games a season (possibly due to cost) and then the 'tourists'.
2, The Myth of the Champions League - Before we qualified for the CL in 2011/2012 I sat in front of my TV watching endless mind-numbingly boring CL group games being told by Sky and ITV that this was the greatest football tournament in the world..... really?? I would think to myself 'surely if we get into the CL one day the group games will be different' How I was wrong! I can't think of any home CL game I can say I have left thinking 'I Enjoyed that' I would much rather watch a Premier League game against Leicester or Swansea than a group game in the CL. And although I will always sacrifice everything to ensure I can afford to get to the Etihad on these 'dream European nights' I can totally understand that those slightly less fanatical or those even scrimping on everything possible but still can't attend for financial reasons don't turn up.
From my own point of view the CL just gives me more chances to watch the team I love but I can take it or leave it, and if we don't qualify personally I don't care, however I'm made to care, because I am a supporter of Pellegrini and of the ethos of not changing a manager every 2 years, and if we are to believe what we hear that Pellegrini will face the same fate as Mancini if he fails in Europe for the second time, then I am forced to hope we at least qualify for the QFs just to keep the status quo.
Ok I'm rambling
Cheers.