Not sure how you can make the argument that the Blues will be on the bandwagon when every indication is that they are far from it (just look at their 2014 attendances)
Not to pour coal on your excitement but the 2009 coincided with the Cousins movement to Richmond, that match had a number of storyline plots that made it an enormous match. It wasn't a stock standard round 1 match it had a huge build up + it was a Richmond home game which tend to draw much larger Carl v Rich crowds.
I also dispute whether both clubs have made this fixture from nothing into the behemoth blockbuster it is today.
Aside from 2009, 2012-13 I don't think the fixture has drawn more than would otherwise be expected for an early season Carlton v Richmond fixture (the same applies to the Hawks v Cats Easter Monday fixture, often we over state the importance of scheduling on crowd attendance)
Starting the season with a big match isn't a recent phenoninum. From 2002-04 the AFL launched the season with Collingwood v Richmond and if not for the shortsightedness of the Richmond administration (who reneged on their deal with Collingwood to split the gate) would have continued long into the future
Anyway just my thoughts...
Also take the 2008 stat out and it still continued to build up year by year to a 80000 plus game