I actually purchased a 150cc Yamaha scoot last summer. I live and work in Downtown Dayton, and spend most of my entertainment hours around here. It was more of a impulse buy at the time, but in the last year I've really embraced the culture. Personally, I just didn't trust myself to not get hurt on a motorcycle, so I had planned to use the scooter as a stepping stone to a bike, but ended up loving it so much that I'm currently in the market for a Vespa or Genuine Buddy.
Mine's 150cc and tops out at 60, so it's fine for city and backroads driving.
But seriously, don't knock it. They're a blast.