Confirms my suspicions on the matter! Yes, it costs about the same as a day ticket, but if you're fine with staying up and maximizing your ride times, it seems to be more bang for the buck.
Although, once GE is open, I'm sure the DHS ticket is going to skyrocket a bit. I wouldn't be surprised to see GE exclusive access (not unlike WWoHP's early admission) to hotels or affluential guests.