Whos to blame for creators repeating themselves? And is it an actual problem?

I'm used to gaming's overreliance on sequels. Consumers--myself included--trust familiarity. Of course I want another great Resident Evil or Uncharted release, just like I want a new Avengers film or another season of Arrested Development. But, rightly or wrongly, I expect the drive for replication to come more from the big businesses that own those characters, not the series’ actual developers. The