You wouldn't save enough weight (in fuel costs vs. an aluminum build) to offset a steel frame vs an aluminum frame. AND you know, it takes a different kind of welder to weld aluminum vs. steel.... right?
Burro tried it and it was a major fail. Curious to see how the aluminum frame, and issues work for
Oliver long term. All I know is I don't want to be stuck in some small town with a frame issue, and there's not someone that can weld aluminum... for miles around. Steel works.