I still have a hard time seeing them completely take over in places where 3-6 months of the year it is miserably cold outside. Sure, I know that "there's no bad weather, just bad clothes" but I still don't quite see that catching on as easily.

That said, if 90% of inner city driving was people on scooters or super small, lightweight, enclosed vehicles I would totally commute to work on an electric scooter, and probably make it work even in the winter. That said, when there's ice on the road and it's snowing, I'm not going to want to ride a scooter when there's a Suburban behind me trying to brake...

I hope you're right, though.