Meh, been playing 4 years, still enjoying it just as much but in different ways. Other mmorpgs have come and gone on my comp, but they all get uninstalled (some after just one login) whilst WoW only gets uninstalled when I do maintenance/upgrade. I'm 27-years old at that, so it's not exactly a "growing up"-thing.
And the dailies = makes it feel like I've earned it when I reach exalted. I disliked them to begin with, but then I took a step back from the "It's there so I have to do it!"-mentality and simply decided which factions I'd like to get exalted with.
If bored, stop playing. Not sure why it's such a huge deal to some people to tell everyone that they're bored with a game that they've been playing for a long time. Also, you're obviously not right with every claim in your post but each to his own.