Why not both?

Build your castle in your own kingdom but have "vassels" in all those other kingdoms to get the benefits they provide and use them to promote your own kingdom. You might still rely on those 3rd party "kingdoms" for the vast majority of your income but you at least have options if one kicks you out and your fans know where to find you.

[edit: akin to a developer having the official git repo self hosted but mirroring it into github for the community]