In some ways, maybe the whole model is wrong. Maybe studios shouldn't expect to survive more than a single title and instead adopt Hollywood model. Not because it's better, but over long term no real-world alternatives evolved. And there are considerable parallels.
I think you're absolutely right. Think about it. You're a studio, spending two-five years making a game, 100 million dollars (Rockstar's estimate for Max Pain 3) going into it, and you sell it for 60 bucks so i can take your product home and use it for a few tens of hours. The business model of the game industry is insane and it's mind boggling that it's even possible!
Plus, while i believe the comercial aspect of gaming has a tendency to make studios take only safe projects, what enables indies to take risks is the lower investment. Give Notch (Minecraft) 100 million to make a game and i bet you he'd pretty much HAVE to make a generic FPS. Gamers demand this because many only want to play games with distinct AAA qualities--meaning there is no lack of demand.
I certainly don't think we need the Hollywood model, but i do think that we need to focus on smaller investments in games that take less money to produce, offer a shorter but more detailed experience. If the indies can do it while living off ramen noodles, you'd think the big cats could do it and be even more efficient at it!