I carried hiking poles for 6000 miles. I rarely used them. I carried them across my back with my hands hanging over them like it was my aluminum/titanium cross to bear. It just seemed liked a lot of extra work to swing poles around.
I carried them because my tent was the Nomad Light and it required hiking poles. When I got my Lunar Solo, I ordered the carbon fiber pole with it so that I could leave the hiking poles at home.
What freedom to not have to carry poles. My arms are free to swing by my side. They can reach back and grab my water bottle. I can eat snacks on the go. I can get out my navigational data. I can mess with my MP3/radio. The minute I started hiking without poles, I knew it was an improvement.