You would be surprised at how many people would pay for that if, like what twdead says, the story is good. Also if it's presented well. A good plot is nothing without good presentation. I've read books that had terrible presentation but a good plot and I just stopped reading because of how difficult it was to follow it.
So that being said I and many of my friends love that stuff. I'd even pay for something like that. Interactive comics and multipaths are always an interesting read/play. =)
Go for it!