I know! I have so many my parents got rid of most of the game cases and put the discs in a disc binder thing and put the cartridges in a box! If you want to know which ones I own besides the ones I said, I also own: most mario tennis games (except for advance and virtual boy), a couple mario golf games, mario sports mix, Super Mario 3D Land, DK Country's 1, 2 & 3 (on Game Boy Advance), DK Land 1 & 2, every console mario & sonic olympics game, one handheld mario & sonic olympics game (the london one on 3ds), all four mario advance games, Donkey Konga, Super Mario 64 DS, all four Mario vs. DK games, a few Dr. Mario games, Yoshi's Story, Yoshi's Island DS, Yoshi Topsy Turvy, etc. If you want a complete list click this link:
http://videogamebros.weebly.com/our-collections.html the list is always being updated every time I get a new mario game so don't worry about outdated info!