Well, personally I think interactive story games have a lot of untapped potential.  I would really like to play a game that was like an interactive science fiction or fantasy romance novel.  But I've also intensely enjoyed many completely linear movie-like games.  Actually the thing I disagree most with is having only a few choices near the end.  If the game doesn't branch relatively near the beginning I'm probably never going to play it again to see the other possibilities because it would be boring and frustrating to replay the first part.  I see little point in being given choices in a game if they are only there as some kind of trap with unpleasant consequences such as a game attempting to make me feel guilty.  If I make a choice that turns out to be the wrong one, the fact that it is wrong is the game's fault, either for giving me insufficient information to make a good choice or for disagreeing with me about what the realistic/appropriate results of the choice should be, or in some cases for not giving me a good choice at all.

On the more practical side of things, my personal experience has been that it is extremely hard to write interactive fiction because my writer instincts naturally choose one path the story should go, which is usually the one that I as a reader would most want to read.  It's really counter-intuitive to then come up with a different path when I've already decided on one I think is very good, and it's very very hard to try to imagine what sort of path would please someone who doesn't like my first choice due to having different taste and personality than me.

Well, personally I think interactive story games have a lot of untapped potential, but I've also intensely enjoyed many completely linear movie-like games.  Actually the thing I disagree most with is having only a few choices near the end.  If the game doesn't branch relatively near the beginning I'm probably never going to play it again to see the other possibilities because it would be boring and frustrating to replay the first part.  I see little point in being given choices in a game if they are only there as some kind of trap with unpleasant consequences such as a game attempting to make me feel guilty.  If I make a choice that turns out to be the wrong one, the fact that it is wrong is the game's fault, either for giving me insufficient information to make a good choice or for disagreeing with me about what the realistic/appropriate results of the choice should be, or in some cases for not giving me a good choice at all.