What I don't understand...
You have an IP this big. Unimaginably big. Beyond what anyone could ever could have hoped as even the most optimistic sales projection... But you don't continue to make content. They haven't annualized GTA--Which I respect, but, frankly, from a business perspective, why the hell not? Nor is there substantive DLC.
Is there any reason they're couldn't or shouldn't be almost continuous single and multiplayer DLC? Things like short story campaigns for side characters or the mid-sized expansion packs of old would sell in the millions. Hell, they could add DLC hats for $20 each and people would blindly buy them. Christ, people by the millions willingly re-paid $60 to play the same game on newer hardware in not even a "GOTY" form. Just the re-buys outsold some of the biggest annualized games. They could require a hardware add-on for consoles that forces people to pay per hour by feeding in cash and people would pay and pay. They could charge like a subscription MMO and people would pay and pay and pay.
When Take-Two still loses money despite an almost literal cash printing machine that is GTAV, I wonder how on a corporate level why the HELL they're not milking the IP for more? That's one of the first steps in cheesing your franchises for more money when numbers go south. It's almost worrying that they don't since it means total idiots must be in charge. Their competition probably sits around trying to figure out how anyone could squander something this badly.