The bottom line is do you really want to travel? For most people the answer is probably no. For those of us who have a high priority to see the world, miles/points are a realistic way to do so. My chosen profession will never be lucrative enough to allow me to travel in style, but there still is a way, and it takes some effort.
Why many people don't get into miles/points is likely the same reason why I don't try extreme couponing for groceries. I don't value the game enough to spend the time to make it happen.