Get everyone in at the same time - servers crash, nobody plays. Get LOADS of people in at the same time ( aka stress test ) - nobody can quest properly, gameplay experience ruined for the majority. Do it the way they did - fair but square, mostly the people that waited for this game for the longest can play, but not that many. Either way people are going to complain, however the last option doesn't ruin the game experience for anyone, it just delays it a bit further. I'd rather play it later and have fun, rather than play earlier and rage about the lags and 100500 people killing my questmob.