I will defend Rhett to the limited extent of pointing out that nowhere did he say or imply Green Day wouldn't be an "instant" sellout. His argument seemed to be more centered around the fact that Green Day has put out terrible music for the better part of the last two decades1 and they aren't worth going to see at $65 (even if $65 is relatively cheap for a band of their popularity stepping down out of arenas to clubs from a pure fair-market perspective).
All of which is extremely true. If I still lived in DC and you offered me a ticket at $20, I'd probably pass. They suck. I couldn't care less about their extremely insipid upcoming guyliner rock-opera which I'm sure is going to be equally awful as their last few extremely insipid already-extant guyliner rock-operas. Everything post-Dookie has been total ass.2
1 - Hell, it's Rhett: he probably thought they were awful in their prime too. That's cool, that's Rhett. No sweat.
2 - I'll give a casual acceptance to Warning, I suppose, if it'll avoid a fight. It was better than the crater of crap records on both sides of it but you can clearly see them starting to try out that fake-politic rhetoric for the South Park generation on it. But whatever.