Buying rogue regions on Dwilight would most likely be a waste of gold. The reason is because for those realms that can reasonably defend against rogue forces, they can take the region militarily, which would be a much safer option. For those realms that can't, then they shouldn't even be thinking about expanding or colonizing. BM is still a strategy game, and in most, there's this rule against expanding without the strength to defend it.
