[MivLives]

Maneuverability. You can turn in place. The tire is massive compared to a skateboard wheel. It can run off road, it feels nice on road.

[asdff]

You can turn in place on a skateboard too by kick turning.

[Tossrock]

Electric unicycles can do all that and are better in every practical aspect, but don't have the cool-factor of standing sideways on a board.

[Xenoamorphous]

Stupid question, but how do you turn?

[eknkc]

You can forcefully pivot it if you wish to turn in place while stationary. Otherwise you lean on the side and accelerate, the wheel is huge and there is enough sidewall to lean on to. You can perform pretty sharp turns. I'd also do a back and forward move, like a 3 point turn but rapidly and within something like 20cm space.