my 2010 People S200 with 4600 miles and also in excellent condition...I would ask, and expect to get, $1500 USD. Is yours original..meaning belt, rollers, plug, filters, hoses, tires, brakes, fluids, etc.? That can affect price.
Around here you can't ever find a 150cc class scoot for less than $1000 USD. Even some pretty beat up ones go for $1200. 50cc's and no name Chinese junk are always available but no one wants them.