[chii]

> I'm not convinced that people opting for such videos would have bought the game if the walkthroughs were not available.

also, if the game has nothing else to offer when compared to a video playthrough, may be it's the game that has the problem!

[TeMPOraL]

Not necessarily. Story-rich games are essentially one-time only experiences, even if they are very fun to play through.

[krageon]

Just like a good book, a good story-rich game invites you to experience it more than once. Even if it is just to notice nuances you missed the first time.