You can look at additional packs too when you have the finances, since new content will add new wants related to the new offerings. Unfortunately the base game is pretty thin on game play (designed to make us need more content). And as others have said many mods will add additional wants as well. If you use mods (well, everyone should do this anyway), get in the habit of backing up your game regularly and before you add new content, or update your game. I copy my saves and tray files and store on a thumb drive frequently. It's the most important thing you can do to protect your game, including from EA caused save issues.