my Wii U is my side chick.. since i have one, my friend also bought a Wii U last thanksgiving and he has Smash, 3d world, and other great games. we are able to unlock all the characters in his Smash game.
my current Wii U console would stay in my home country and for the kids. I'm playing to buy another one and will be connected with the kids online once we play those games. already have most of the big ones - hyrule, pikmin3, mk 8, smash, bayo 2, 3d world, SMBU, DKTF, even Injustice, Batman Arkham, AC III, AC IV, Goldeneye, ME3, DSII and i might have missed a few. :)
i think i have enough games for a while so will just wait for Xenoblade X and Zelda U. devil's 3rd seems great waiting for more trailers and gameplay with that game too.
i have the PS4 for Fifa 14, 15, TLOU, KZ, TR, etc,, around 10 games... so i'm fully stack on my games.. would buy those shadow of mordor maybe in late 2015 if i'm bored. :D