My kid lost my 3DS a while back :(

Cryyo

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Jan 1, 2015
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and I haven't really been in the scene since. I recently bought a wii U though, and I noticed that the 3DS can be used as a controller for super smash bros. Is it worth it to get another for that kind of functionality? Could I get it instead of another controller and see other games that are able to use the 3DS with the wii U? Are there any new games that justify buying yet another 3DS?