If you live in an area with rough roads the tiny wheels are a huge liability IMHO. It's very exciting in a bad way when the front wheel falls into a pothole.
Piaggio makes one with large, narrow wheels... that's what I'd get if I needed a scooter.
Yeah, the streets in Baltimore are slightly better than streets you might find in a third world country. That's a big reason why I chose a V-Strom as my commuter bike.