Hey Jason,
Thanks for reaching out!
There is unfortunately no feature in any plugin at this time that would automatically import Eventbrite events. 🙁
As for your question about pricing—prices are indeed per add-on. Nothing comes with Events Calendar Pro other than Events Calendar Pro itself, so each additional add-on is its own license, its own cost, and so on. The only exception to this are some bundled packages of our add-ons which you can find here → http://theeventscalendar.com/bundles
I hope that helps!
George