If you live in a very large city like I do then the smaller cc bikes are much nicer.
I get to my destination much faster in my 200cc chinese motocross looking bike than my 1200cc bmw. You can just filter through traffic much easier.
My friend has a 750cc honda and a 125cc honda scooter. (He is a lawyer and has to wear a suit). He says he enjoys the 750cc more BUT the scooter is more convenient. His shoes and pants get a lot less dirty with the scooter and he has a ton of luggage space.
I wish i also has a scooter
Ps: i live in istanbul where there is an excess of people that are not really mentally or culturally fit to be on the road.