Hey Mark. Thanks for the note here; funny, you’re the first person I’ve seen ever actually ask about multisite licensing for Eventbrite. We are working on a plan for it with the core product but the add-ons haven’t really seen it come up. If you email me ([email protected]) we can keep a discussion on that going.
To answer the non-cost related questions:
* Yes, if set up on a multisite, it would give a separate installation of the plugin per sub-site.
* Totally fine to start on a 10-site license and upgrade whenever multisite licensing is officially supported. That’s what we’re asking users who want to do the same with Events Calendar PRO to do: start with a developer license and work up from there.
Hope this helps. Let me know if it doesn’t, or if you need anything else here.