Okay, this I can approve of.  If you play The Sims Social, you should see the following banner below the game in which you can save 35% off of The Sims 3 Stuff Packs!  Not too shabby, especially the fact that you can choose between physical and digital versions.  North America players only.  Thanks to SimsVIP for the tip!

https://i2.wp.com/farm7.static.flickr.com/6208/6077961781_99d2fec57a_z.jpg?resize=598%2C481