Diablo 3/SimCity's launch.
Because, of course nobody is going to be able to play these games on launch because it's expected that the servers can't handle millions of people trying to connect and play the game at the same time. I mean, after all, considering these franchises haven't come up with a game in its sequence well over a decade since the last game, it's not like there are millions of people who are waiting in eager anticipation to play this AT LAUNCH. It's perfectly reasonable to think that, despite the vast amount of servers set up, they can't take that load, and players will just have to be patient because good things come to those who wait.
And, it's very obvious that the best things about these games, or the potentially best thing, is that people are interconnected and play with each other, because that's what these games are meant to be: multi-player. It's not as if the last games had several people, THE MAJORITY, who liked to play on their own, anytime they want, without having to worry about their internet connection working 24/7, or at all, means anything. These games, these new games, are meant to be played with friends or complete strangers; it doesn't matter, as there is a vision, where everyone is connected, and no one has to ever play alone. After all, there are other games for that (Torchlight 2/Pirated version of offline SimCity).
Also, considering that, even though the requirement to be always online was never used before, the fact that it's used now is a great boon to the future of gaming, to the point that it doesn't matter about how little important loot drops, as that is why we have the auction house. And all those little bugs and small terrain are just incentives to join with other players' cities and keep communication flowing. It all works! There's a vision!
...
I completely regret purchasing Diablo 3, rather, pre-ordering Diablo 3, even though I have friends that still play. And while I was never a SimCity fan, I understand the pain of the fans of the series. Especially since trying to connect to the game servers is only the START of the problems/failings of both games.