Chicago TARDIS

So, on a scale on one to ten, how mad is it to sort of plan a bit to go to Chicago TARDIS this year? I've always wanted to go to one of the big American Who cons since I first discovered them When I Was But A Small Child. And now I'm all old enough, and don't have uni, and, since I'm under 26 I can get a Youth traveller card and some pretty decent flight prices. And the con itself (thank you shiny exchange rate!) isn't hugely expensive. And, y'know, I'd probably know somebody going, yes?