What is so different in experience between NSMB 2 and NSMBU?
Smash Bros. 3DS and Smash Bros. U?
Mario 3D Land and Mario 3D World?
Mario Kart 7 and 8?
Are Zelda: MM and Zelda: OoT unplayable or unenjoyable on the 3DS even though they were conceived as console only titles?
Would you not want to play a proper Pokemon RPG on your TV or is that only fun on a smaller screen?
Would you enjoy your Wii U less if you could just take the Game Pad with you outside the house and play on the subway for example?
I don't think these arguments really hold up to be honest.