I have one, but it wasn't because of Mirror of Fate that I bought it. Fire Emblem was the main reason. Then, already having the console, I bought MoF, but the best game so far is still Fire Emblem (that I'm still playing, alternating with other games).
Of course Megaman and Metroid change the map of every console to me!
I'm wishing for a WiiU sequel to Metroid: Other M (that's the console I still don't own and I'm waiting for some big game to appear... maybe it will be Bayonetta 2 the one that makes me go get the WiiU).
It's the same thing with Vita, I bought it with Gravity Rush, and now I'm just waiting for a CV to appear, if we ever get one for Vita.