On a similar theme, I flew to Cologne last Sunday for a couple of Euro games, and something reminded me of this thread.
I've done the vast majority of City's European away games since we moved to the ETIHAD, but it's noticeable that some of our older supporters (many of whom were in their late 30s for Lokeren and the early Europa League games) are now pushing 60 and beyond.
Consequently, the whole demographic has been diluted by occasional travellers and foreign supporters, whilst the vocal diehards are no longer supping three pints at 5am before a day trip to Santander or Poznan. We've seen it all before and prefer to keep our powder dry for the latter stages.
In complete contrast the flight to Cologne last Sunday was full of boisterous Stoke, Derby, Leicester, Coventry, or Sheffield Wednesday, most of whom had never experienced their team in Europe. Christ they were loud, and it reminded me of the first time we played in the Allianz.