Hi Allen,
Thanks for your interest in our plugins! Due to limitations imposed by the Eventbrite API, purchases made using Eventbrite Tickets must be routed through the Eventbrite site. However, this purchasing process is completed in a separate window or tab from your site, and users will be redirected back to your site once the order is complete. We have a sample event available for testing purposes on our demo site, WP Shindig, if you’d like to test the order flow for yourself and see if it might work for your needs!
I hope that helps to answer your question here! Let me know if you should have any others, and thanks again for stopping by! 🙂