Sarah,

“but how many kind of stories can you tell using computer games……. not many I am guessing”

Depends on the game. There are thousands of stories embedded in World of Warcraft – Every quest or quest line tells a story, and while many are repetitive, some are truly amazing in a variety of ways. Funny, sad, inspiring, depressing, paranoid, goofy, etc. And you, as your avatar, directly participate. And while there is not much branching (unlike interactive novels), it can sometimes take a while to figure out what the right thing need to do to finish the quest. And to successfully overcome the opposition in the process.

I have:

Helped conduct an exorcism. Called up demons myself.
Assembled a torn rag doll to comfort a lonely ghost-child.
Rescued people in dire straights.
Been a hero. Been a amoral sleaze.
Been deceived into acting against my interests, and have been grateful for the chance to undo the mistake.
Worked with a teams of players to overcome difficult challenges.
Been witness to many events (but not all, there are too many) that form the lore of this created world.