Its down to a variety of factors isn't it? Where are you going to store it/them? How do you transport them? What terrain are you going on?

We don't have a car or garage, so my answer had to include "will fit in a taxi (not just a WAV one), will go on a bus and train and plane"
A scooter was deemed unrealistic - I have real difficulty with the controls - my right hand cannot grip and MAINTAIN the grip.....essential with scooters.
Storage? No garage so most of my 2 wheelz live in the bits and the rest in the hall. Or the wetroom. Its a case of jenga with the washing rack, wheelchair, stock deliveries, ironing board. you want something OUT the cupboard?? Good luck with that...