Club Nintendo has finally completed its layout update which includes a new type of reward. Members can now use coins to purchase game for the Wii Virtual Console, WiiWare, DSiWare, and eShop. These games included Super Mario Kart (Wii VC) and Mario vs. Donkey Kong: Minis March Again (DSiWare). Other new rewards include Mario-themed notebooks and pen cases.
I've always wondered if Club N only accepts new games or if I could input my entire Nintendo library for a bunch of coins. Never bothered to join because I don't buy enough Nintendo games on a yearly basis.