Your setup sounds like mine. An 8x8x8 coop elevated 30”. My run has a portion covered with a metal roof and I enclose it with fiberglass panels for winter. On nice days I give them the option to go out into the large outdoor portion of the run. Then in May all of the panels come down.
And yeah, not many people save money doing this. Most of the cost is up front, but it still isn’t cheap. I enjoy the hobby though, and their personalities and the flock dynamic is definitely fun to watch.