For everyone who thinks that we should -have- to sit through credits consider the following:
Let's say you've just finished enjoying a delicious piece of cake.
Now let's say that upon completion of said piece of cake someone comes in and forces you to sit there while you are introduced to everyone who helped in the creation of that delicious cake. The bakers who baked it, the truck drivers who moved the ingredients, the people who refined the raw materials into usable ingredients, the truck drivers who moved the raw ingredients, the people who produced the raw materials, the people who run the store where the rancher gets his feed for cattle to produce the milk, the people who wrote the music that everyone listens to while working on this project, the DJs who played such music on the radio for everyone to listen too.
Would you put up with this? No?
What about if it was done every time you enjoyed some cake? Would you like it anymore then?
That's our point, you wouldn't. Credits are supposed to be optional for a reason, and -most- [not all mind you, but most] good games know this. Honestly when I have pointless, unskippable credits that don't net achievement points, last for over twenty minutes, or even offer say, interesting concept art in the backgrounds or on the sides, and over all serve as a barrier and me saving my completed game file. Then no. No I do not want your credits, and because of their poor execution I actually mentally lower the position in my mind of how awesome a game really was. It can make a great game just good, a good game mediocre, and a mediocre game just scream that it needs to be taken out back and shot.
Why, might you ask? Because it's pretentious, inconsiderate of designers, and assumes that every single person wants to see the entire credits everytime we beat a game. If the credits are well executed, or in the very least, not just boring white text on black backround AND the game was really good, then I do sit through the credits. But that is the only time I do so because -I- want too. And that's the way it should be. The player should watch the credits because they want too. After all, it's a game, and games should be enjoyable for the people playing them.