If you have the right awning it will get used a lot more. The awning on our old TT was a PITA to deploy and roll up, spring tensioned with not much room for error and a good breeze would send it flying out of control. On our new C we have an electric awning that deploys smoothly in 30 seconds and is much more robust than its predecessor.
Even if we are not sitting under it, which we often do, it will keep the coach much cooler especially in the mid day to late afternoon sun. Keep in mind we live in Arizona and do most of our camping out here in the western states. I would not own a rig without a good one like we now have.
They will stay cleaner and work better if you run them out on a regular basis and a little water and a brush/broom is all we have had to use to keep them both looking good. A little dry lube at the "joints" is a simple, regular maintenance moment that helps to keep them operating smoothly. :C