No, there will be a few women there being paid large amounts.
I never understood the appeal of Blizzcon. You know what games they are coming out with, you know what shit they have, all you are really getting out of that ticket is the chance to see some Starcraft or something that you can easily watch a stream of, and potentially access to the Diablo 3 beta (which won't be that difficult to come by eventually anyway)
A beta key is not worth several hundred dollars of a ticket, airfare, and other expenses.