Just found out about this new USGP ticket special on LivingSocial. I came here to post it in the 2013 USGP thread & found there was none, so, here you go:
Choose from the following offers:• $39 for one Friday ticket• $59 for one Saturday ticket• $79 for one Sunday ticket• $249 for one Turn-Four Weekend Pass• $999 for four Turn-Four Weekend Passes with parking