I finally decided to upgrade my SG aluminum S4 to an S5 for the always on display. Admittedly, I wish there were more new features to justify the purchase, so much so that I briefly considered getting the new watch in SBSS just so it would be more unique, but honestly, the aluminum watches have held up very well for me. Also, I always get Applecare just in case the screen does get scratched. My SO was stainless, and while I did like it, when I got an aluminum S3, I liked it just as much and appreciated the lower cost. I then got an aluminum S4 and was just as pleased. If I was less inclined to upgrade so often, a stainless or titanium body might be appreciated, but as it stands, I’m more intrigued with the new features each year.