Going, going, almost gone. I hope you got a copy of the limited edition Super Mario All-Stars. The 25th anniversary Mario game collection for Wii came out in December, and it's been relatively hard to find since then. Nintendo now sends word that the last of the limited edition run is now shipping, and that the last of the shipments will hit retailers on March 13.
If you somehow missed it, the games included in this Super Mario All-Stars collection are Super Mario Bros, Super Mario Bros: The Lost Levels, Super Mario Bros 2 and Super Mario Bros 3. All are playable with a sideways Wii Remote, a Classic Controller or a good ol' GameCube controller. Also included in the box is a 32-page Super Mario History booklet and a soundtrack CD. Not bad for $30. That's probably why you could never find this game.
If you want this for your collection, start looking now.