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Players who are bothered by long queues, server crashes, rampant bugginess, and the like don't play a game on launch day. Or launch month. Because they know the game is going to be a mess. The people who have to deal with a messy launch are by definition the ones who aren't bothered by it much. So why does it matter if the launch is smooth?
What's far more important is whether the game is good a year later. Launch day messiness can be fixed and often is, as it's often caused by wild fluctuations in the number of players. If the game isn't fixed a year later, however, then it probably isn't going to be.