I mean… that’s on you, then. Historically, that’s not how the Fediverse has worked, and it likely will continue to not work that way. Things could always change, considering the Twitter exodus and now the Reddit exodus, but the way most Fediverse services are set up seems to encourage smaller communities rather than large, centralized ones. Plus, if you have centralized ones, what happens if admins go rogue? What if the servers go down? What if, what if, what if? With decentralization, you avoid so many issues that come with having those large, centralized instances. Of course, there are downsides, but if you want something centralized, maybe try something like Tildes?
If I remember correctly, it specifically never goes on sale.