James, please open a category for that;)
One of the older yet very powerful scooters I would want to get is the Vectrix. They rage about 10k new but a used one is as low as 3-5k.
Here is a very useful intro vid about it
And a drive video
I am scared to ride a 2 wheeler, but I wouldn't mind the 3 wheeler VX3
Yes, looks safer to ride. But the Vx-2 looks silly