I am very sorry for the late reply for anyone that didn't get questions answered. ZCON (for those that don't know), is an international event and has car shows, cruises, and motorsport events.
The final price break is May 15th, then the registration fee will be full price. For the people who may not be able to make the event for the whole week, there will be a weekend package called BZF weekend package and will be aimed towards the people that can't make it to ZCON until later in the week, and would still like to be at this years ZCON. The weekend package still has optional add-on events.
ZCON this year will be July 16th through the 21st.
ZCON