I got the SGS because I wasn't sure if I'd wear a watch long-term. Next time, I'd go for the SS for the flexibility with bands and a bit more durability.
This was my thought process when I first bought the SGS, I've never worn a watch on a regular basis and wasn't sure how I would like wearing it. That being said, I've worn the Apple Watch every day since 4/27, and just upgraded to the SBSS yesterday.
Unfortunately for me, Apple Watch is here to stay. Now I just need a SB Milanese Loop and a leather band with SB lugs.