If someone is interested in owning/carrying an aluminum-framed 1911, but has never had the opportunity to shoot one, it might behoove them to try and find a way to try one out before spending the money.
I bought a Lightweight Commander as a young man, but foolishly traded it away for a Combat Commander. I was concerned about the durability of the Coltalloy frame, since I was an avid handloader and did a lot of shooting. I read an article (American Handgunner) in the late 70's about a 5,000 endurance test , but was still a bit leery. One of my youthful choices I came to regret.
After I entered LE my father gifted me a Star PD, which fed and functioned with the JHP's I used, and it was a nifty off-duty weapon. I can't remember why I traded it back to him, but I did, which was another youthful mistake.
In the mid 2000's I ordered a S&W SW1911SC with a 5" barrel. It was the once made with the stainless slide and light finished Scandium alloyed, forged aluminum frame. I bought a Colt XSE stainless Government the same year. Both were bought from the companies using student discounts after completing a couple armorer classes. That SW1911SC 5" was the gun I wished had been available as a young man.
I have several 1911's, and while I really like the way the all-stainless XSE handles and shoots, the SW1911SC is lighter and easier on the hip ... while the 5" slide/barrel length still offers enough slide mass to make it very well balanced and controllable. I almost ordered the "Commander" length model, and then later considered ordering one of the Enhanced SW1911's with the Scandium aluminum frames, but I was distracted by other things and missed the window to buy them under the (discontinued) armorer purchase program.