Surely the difference is very roughly this....
KLR = cowboy, the wide open range, challenge of the Wild West, smoking a Marlboro in the saddle.
Mini Scooter (<250cc) = Urban Mobility, practicality, drinking a coffee and meeting friends
Maxi-Scooter (>250cc) = Mini Scooter + long distance cruising.
You just have to decide where you are in your life.......