I haven't played TS3 for a little over a year.
Last year, when I installed Island Paradise, it wiped the entire game. Nobody knows why, and I never got an explanation from EA about this. At the time, I had all of my discs except one, and all of my codes except one. Like an idiot, I hadn't registered all of my games, so I was SOL. The game wouldn't run on my laptop and my desktop was dying as well, so I wound up waiting. We moved, and my discs got left behind.
So TS4 was an opportunity to get back to playing The Sims. I figured that it would be simple, that I'd move on with a different game.
Problem is that I haven't. TS4 is like an advanced version of TS2, meaning that it's nothing at all like TS3, which makes me want to play TS3. I believe TS4 is the superior game (by leaps and bounds), but it's too different.
I'm currently planning on replacing all of my TS3 games.