Have any of you heard of "7th On Sale"?

i saw it on vogue.com i think, and i know a little about it. its supposed to be this huge sale in NYC, and it benefits HIV/AIDS. i think i want to go, but i dont know much about it, like if it is even worth going. i dont want it to be like a huge ripoff that i drove 4 hours for. so if u know anything about it please tell me.