World of Warcraft right now. Yes, you really want to have one more character up at the level cap, but you can't bear the thought of leveling any more. So what are you going to do? Well... you could just pre-purchase the expansion and get your instant level 90 character immediately, thereby saving you any more work leveling through the expansion and letting you just catch up a bit before its launch.
All right, you can't do all of that right now, but the development team has confirmed that digitally pre-purchasing the expansion will give you your instant 90... instantly. No word yet on launch dates, but players can opt in for the beta testing right now via the Battle.net account management page. The company is also testing the idea of adding in the level 90 boost to the game's store, allowing you to bring as many characters as you want up to the cap without any fuss.