Denis Leary said it best: "Happiness is not a state of being. It's a chocolate chip cookie or a 5-second orgasm." Human beings are simply not even programmed to be "happy".  That's why people can be rich and famous and still looking for something better.  I have also noticed a really annoying trend even among friends who think they don't like their jobs because they don't always want to do them.  No shit, you're not going to like work as much as you do Xbox.