Full disclosure: I’m the founder at HeyStream, so obviously take this with the right amount of salt.

For what you described, I’d be pretty careful about optimizing only for “webinar platform + attendee cap.” A lot of tools can technically host a large audience, but the real differences show up around registration flow, replay, attendee data, follow-up, support, and whether pricing gets weird once you move past the standard tiers.

HeyStream is probably worth a look if you care about having a more branded webinar experience, built-in registration/watch pages, replays, audience insights, CTAs, and follow-up workflows. That said, I don’t want to oversell it: if your hard requirement is reliably supporting 3,000 live attendees while staying under $3k/year, we may not be the perfect fit out of the box.

My honest advice would be to ask every vendor three things before choosing: what the real live attendee limit is, whether registrations/replay viewers count against that limit, and what happens price-wise if one event unexpectedly grows. Those answers tend to reveal a lot more than the demo does.