"Indie cred" isn't as valuable as an RPG book with some buzz, an early release copy of a board game, an adventure, comics & miniatures, RPG & screen & dice, or multiple autographed RPGs with accompanying t-shirts. It is, however, apparently approximately as valuable as a t-shirt alone, so things aren't too bad.
(I'd bid more, but while I'd love to try it, I've barely read SotC; aren't likely to play it any time soon; never [to my knowledge & memory] even read a post by the Evil Hat gentlemen; and couldn't get into the Dresden Files books. )
They should've offered an actual evil hat of some sort.
Okay, to be pedantic, I'm taking issue with calling that stuff 'swag', a generally undesirable term meaing "stuff we all get" (among other things). Most of those donations are freakin' awesome, plus getting to sit at their table? Sweet. I gots to get me to Indy next year...