You get your regular discount on the merchandise only - not the registration fee. You have to sign up as usual, like everyone else. If you haven't registered yet, better do so soon as it's filling up. The early registration discount is already expired, so it's now $115 instead of $100.
I hope you can make it - I've gone the past 2 years and it's been great. I'm going again this year and hope to obtain all the Figment pins that they so "wonderfully" created for this event!