When you have long flights it's nice to have space to walk around the cabin, go to the back and have a drink etc. Also I feel like even if you are sitting the

When you have long flights it's nice to have space to walk around the cabin, go to the back and have a drink etc. Also I feel like even if you are sitting the whole time, there's a difference in perception between sitting in a small confined space vs sitting in a space that is larger.