If you buy a lot of video games from Nintendo, and you're not taking part in Club Nintendo, you're wrong. The service offers a few great prizes, and goodies that aren't available anywhere else, and costs nothing more than the games you're already buying. One of the items Japanese Platinum members are lucky enough to find this year is a download for Advance Wars; Days of Ruin, which was unreleased in Japan.
Why does this matter to us? It probably doesn't. It's just interesting that a DS game has been converted to an eShop game after it went unreleased. Could we soon see DS games added to the Virtual Console? Probably not, but it's definitely something that could have a market.