Well, how is this different from people wanting to replay the game to see the same ending ? For example, grand strategy games, like Civilization, are specifically created to be replayable, but the ending is always the same "your nation is the greatest blah blah blah". Oh, and there might be a short video if you won through space race. So i dont quite see the problem there. People play games not to see the ending, it is simply a way to give closure to the whole playthrough.
I'm of two minds over people wanting to replay to see all endings/best ending.
You are (i suppose) coming from the mindset where the game is 98% the same no matter how many times you play it, like Bioshock, and one decision in the end is all it takes to get a different ending. Am i right ?
I'm not against replaying in the sense of replaying from scratch. I'm not against replaying as in reloading your favourite battle and having a blast-fest. What does concern me is when people want to see every possible ending and reload and replay from a specific point to get that specific outcome. I guess players should be allowed to; it's their game. However it would lead to a very disjointed gameplay session where immersion is sacrificed in the name of enumeration. You don't think it happens? It's not unknown in the Fallout 3/New Vegas community. I've even participated to a certain degree, trying to attain a certain outcome in a quest. The thing I noticed is that although the first outcome is not what I wanted, I could have shrugged and moved on. But bashing my head on it trying to get the outcome that I wanted actually made me hate the game and I stopped playing for a few days. It also exposed the mechanistic nature of the quests and AI as tough examination often will. That's not an experience I would like players to have.
In any case, I'm a big fan of the idea of non-failure failure. Really interesting idea. Good thread!