1. They ARE harder for you because they're trivial, therefore you're too lazy to go and do them, no matter how much you complain I'd like to point out that you're complaining on here while you could be putting in some music, go out and do your dailies, bam, done, get it over with. It's called willpower.
2. You're sitting here and scrutinizing WoW yet you bring up Skyrim? What happens after you get everything in Skyrim? Every quest done? Every cavern/tomb discovered? Oh, you put it away on a shelf, until you get ONE expansion, you do that in maybe a month, you're done.
WoW? I can guarantee you that you haven't done everything this game has to offer, considering there's only one person to have technically "beaten" WoW, that's how much content there is.
You're just choosing to not do them, and then turn around and complain about nothing to do.
You know what you sound like? My super picky sister, when she opened the fridge when we were little. *Sees entire fridge stocked full of food* There's nothing to eat. What she MEANT was there's nothing SHE wanted to eat, yet she had loads of options, even using her own car, and the money she made from her job, and going out and buying her own groceries. My parents weren't going to just buy everything over again or sector off a butt load of their grocery list just because she was an extremely picky eater.
In this aspect, it's gaming, so what I would like for you to do, is put WoW down, walk away from it, go find something else to do until WoW has something that engages you again. Whoolah.
Blizzard catered to casuals once, and it put them in a pretty big hole.