The Nintendo Switch exists, and is a fantastic gaming system that you can, in a pinch, play in a bar, a car, or on the train. Phones exist too, and the games on them are better than ever. So why the hell should you own anything else? Because games. The Switch's library is still small, and smartphones still lack those games you can get lost in for days. So if you want a mobile system that can go anywhere and play some of the best games ever designed, you need something from the Nintendo 3DS family, which despite being seven years old, shows no signs of being at the end of its life any time soon.