Mario Kart 7 is one of the best reasons yet to buy a 3DS, as we don't believe there's ever been a bad game in the classic series. The game came out today, but if you're still on the fence about picking it up, you can head over to Kotaku and check out their video tour of all 16 new courses.

Our favorites so far are Shy Guy Bazaar (it's about time the little red riding freaks got some recognition), Music Park (it's got a working piano, marimba and xylophone), and, of course, Rainbow Road. It's cool to see elements from newer games—like the Tiki Tak Tribe from Donkey Kong Country Returns—making appearances, and the underwater sections look great.

The game also features 16 tracks from past MK games, including favorites like Luigi's Mansion (DS), Maple Treeway (Wii), Koopa Beach (N64), and Rainbow Road (SNES). What do you think—is Mario Kart 7 enough to make you rush out and buy a 3DS, or are you holding out for something else? Let us know in the comments or on Facebook or Twitter.