The GN view is bang on - I've taken my kids (12 and 10) to a comic store - their eyes glaze over. When I was that age, the comic store was the greatest place - like a weekly Christmas. But when we go to the actual book store, we rarely leave without something from the graphic novel section. My daughter loved those DC Superhero Girls collections and my son bought 2 volumes of "Spide-Verse" (which I didn't know but man it was good!) the last time we went.
And price point has always been a concern. When I was a kid and comics went from $0.50 to $0.75 in a couple of years I remember my dad losing his marbles. Now, at $4 or $5 - my kids can get iPhone games for free! Comics can't compete with that. And that "other options" is part of the challenge. In the late 70s/early 80s, I got cartoons from 4-5pm and Saturday morning for 3hrs. Now you can get cartoons 24/7. Movies - when we left Superman I harassed my father mercilessly "can we go again?!?" Now, you can watch every movie ever - whenever you want.
Heck, my kids have zero interest in my comics - none. That saddens me - as my old man would always bring back a comic or two when he went away on business trips and when he knew I'd bought comics after school he'd poke his head into my room and say "...where's the Avengers/G.I. Joe/X-Men - I want to find out what happens..."