I bought my PS3 Slim back in 2011 just for Gran Turismo 5, since then I've gotten SSX and Uncharted 3. I haven't bought any other games for the console, instead I subscribed to Playstation Plus and got a good few games there, Infamous 2 being my favourite out of the lot.
As for my Xbox 360, I bought the first revision of it back in 2006, and now have the Slim version, bought it for Halo Reach and Forza 2. Don't use it that much though, prefer the PS3's slicker presentation.
If you can include it, I bought the Vita for Unit 13 and Wipeout 2048. Great really.