Starting April 22
Beginning April 22, Super Mario 3D Land, New Super Mario Bros. 2, Animal Crossing: New Leaf, Donkey Kong Country Returns 3D and Mario Kart 7 will be available for a newly reduced price of $29.99 each. Some of these are million sellers a couple of times over, so you know they're good. Probably. IMO.
Nintendo will have this discounted price retail stores and on their eShop starting April 22.