I just picked up an older Honda Aero 50 to tool around on when we are out of town, or at the campgrounds when we are traveling. I bought it on the cheap not running, and just got it to fire a few days ago. Pretty quick little bugger for 50 cc.
We always have a blast when we rent them in Key West touring the island . The wifey even likes to ride, although she hates motorcycles .
It is small, and light, I can load it into the back of my truck single handed without ramps. I can see this being a fun little diversion . The new ones seem a whole lot nicer and faster . I'll probably grab one up for her as well.
I have also found that there is a huge aftermarket for performance parts .
This is just a stock photo, I have all the panels off mine to repaint right now. but it is the same model . Mine was pretty scratched up .