Happiness cannot be generalized. It is a lot subjective. And I think its yet another perspective of life that different people carry differently. For some, it lies in getting what they wish for. For some other, it lies in getting acquainted and adjusted to what they have. And for some other people, it lies in getting a surprise that they never thought or tried of. Neither of them is wrong. Everyone is right with his ideology for his own life.
Choose your way that leads to happiness. You have full freedom to pick any way!