December 2013, got the NSMBU/NSLU bundle and bought The Wonderful 101 and Wind Waker HD within a month after that. I've gotten more retail games beyond that as well:
Donkey Kong Country: Tropical Freeze
Mario Kart 8
Pikmin 3 (free game w/ MK8)
Super Mario 3D World
Rayman Legends
Deus Ex: Human Revolution Director's Cut
Batman: Arkham City Armored Edition
Warriors Orochi 3 Hyper
I've bought even more digital games beyond that, but I won't list those. I plan on buying Bayonetta 2, Super Smash Bros, and Hyrule Warriors this year as well.
NNID: TheCCluc