I found out just this morning that according to Yahoo! games that Super Mario Bros is no longer the best selling game of all time, but instead that title now goes Wii Sports. I'm a little sad by this because I grew up on Super Mario Bros and it was one of the first games I played and I never though in my lifetime I would see another game sell more then it, but I guess it did happen and I'm glad for Wii Sports, but someday another game will raise up and knock Wii Sports off as the top selling game of all time, but to me Super Mario Bros will always be the best selling game because it helped the gaming industry out a lot.
Here's a link to the article as well:
http://videogames.yahoo.com/feature/wii-sports-is-best-selling-game-ever/1276855