Starting over after not playing for a long time

Oddly, I recently realized I played Sims 3 for a very short time when it first came out. A few years ago, I started playing Sims 4 and loved it....UNTIL I took a quick look into Sims 3 (not remembering I played before - had a brain trauma that wiped some things from my memory) and found so much more depth and personality in my Sims.
You're not alone in being amazed. :)