The Sims 3 is one of the greatest games I have ever played- scratch that- the BEST GAME EVER! It gives you unlimited things to do with it!
Anyway,
Like described in my forum post at the Sims 3 Website, a SimSoap is basically a soap opera for the Sims. I have tried legacies before, and we just don't go together. I get bored easily. But with a SimSoap, you can add all your crazy characters and ideas that you would want to put into a legacy, and it becomes whatever you want it to be! NO RULES! YES!