Moped's are fun as hell, plain and simple. Moped's are different than scooters. Scooters and the ones without pedals and are the sit ons with the little foot platform.
This is my 2005 Tomo's ST. I got it last summer and rode it around until August when I burned out the clutches. I got back from school and did the work it needed and she finally runs again.
I absolutely love riding mine around town. It tops out at about 30mph and gets an average of 102 mpg (I filled the tank 3 times last summer).
In Massachusetts you don't need a motorcycle license or insurance and its only $40 to register it for 2 years.
So save your pennies and pick one up, you'll be happy as hell that you did.