Radiohead + RHCP + Phish roughly = Macca + Kanye + Petty $ wise, maybe a little more, but not like 500k more (Im guessing)
Bjork + Beck + Deadmau5 + Wu-Tang + Wilco + Passion Pit + Vampire Weekend roughly = Skrillex + Bon Iver + Avett Bros + Shins + The Roots + Foster the People + Beach Boys
Not that far off at all in my estimation. I mean, Im not going to pretend to try and guess at the exact numbers but I went through and matched band for band and what kind of places each were selling out and it seems pretty even on the second group.
I wish it would happen, but Im sure it won't. I just don't see it as unrealistic.