Most recent game I bought was LEGO Harry Potter: Years 1-4 Collector's Edition on Xbox 360.
Not too sure if I agree with the opinion that it's the best LEGO game, but it's certainly a lot easier to play than the others. And by easier, I mean "not quite to mind numbingly boring".
I got Demon's Souls on the PS3 (already have the US version, but I was swayed by the extra freebies in the UK version), Infinite Space on the DS, Defender Of the Crown on the GBA and Nemesis on the Game Boy. Then I got home and found my copy of Trinity Universe on the PS3, which I'd ordered from Amazon! Having also bought a bunch of Wii points, I also downloaded some games from Virtual Console, as well as Blaster Master Overdrive.
Technically I didn't purchase these as I won them, but Resonance of Fate on the 360 and Phantasy Star Zero on the DS.
I did buy Final Fantasy 9 on PSN the other day though, so that counts! It's one of the only Final Fantasy's I haven't played, so I really wanted to give it a good try. Too many cut-scenes