It's still overpriced. I mean, $30 for a poster? Just because Jack White is in the band doesn't mean they have to charge that much...esp. for a band that has one album!
How can a poster be considered overpriced when it sells out and then goes for 4x face value on the secondary market?
$30 bucks isa pretty standard price for a hand screened concert poster. When you start thinking of the big boys in the world of gig posters (emek, horkey, jay ryan, etc), $30 bucks is actually a pretty good deal.
Yeah, it is kinda steep if you think it's an offset print, thin-papered piece of crap that you'd buy in wal-mart, but they're not. It's limited edition, hand-pulled, custom work for a one-time event. A lot of effort goes into designing, printing, shipping, etc just to get it to the venue in time for the show. All those steps have fees and the end result you pay for all those fees plus a small markup.
Then you flip-it on the secondary market and pay for the poster, your ticket, your friends ticket and all your beer (..well, maybe not the beer, especially here).