I think it's two things, the first you are right the days of the "superstar" are gone thanks to the internet,
I wrote a little about it on my site, basically we have now more artists that are popular but none are superstars like in the past since we're not bogged down by a few tv channels or radio stations. The second is most of us are not teenagers anymore and as much as we try to know what's it, it just isn't possible as we age unless you already have teenager kids.