I also bought the game based on the choices affecting outcome marketing.
The VERY FIRST thing you see when you load a new chapter is:
This game series adapts to the choices you make.
The story is tailored to how you play.
This is pretty much a lie. It should read something like:
This game series flavors the experience from the choices you make.
The story is colored by how you play.
I'm still having fun with the game, but like a poster above me, it annoyed me enough to post about it. In my opinion, it wouldn't be difficult to create a few set pieces per episode and then focus all attention into story and branching. And also like a poster above me, I'd be happy with an "A or B" branch -- I don't need "A, B, C, D, E, F", though I remain unconvinced that it would be such a monumental hurdle to overcome.
I don't think the choices would necessarily have to become a logisitical nightmare the longer the story went on -- I think creative writing and what kind of choices you actually present could take care of a lot of those problems.
And I would hope sophisticated enough tools are available to the designers that allows writers to basically load a set piece (after completed by level designers), place characters and script the scenes. I would imagine the tool could be simple enough that if it were released, the public could easily create their own episodes (hint, hint).
You would have new models on occasion, but most animations should be done by now and with a good base of generic assets and a decent level editor, you can create a lot of different types of locales. Maybe the voice acting takes too long / is too expensive.
Like I said, still having fun with the game, but the source world/material of The Walking Dead is so rich its kind of disappointing we don't have some real branching. Maybe on the last episode, they'll go crazy (we can hope.)
inb4 "make your own game" (which is on my long-term agenda.)