For a short time in 2008 I owned 80 scooters on 2 wheels. and piles of parts.
Friend & I turned about 20 fairly quickly then sold the remaining 60 + units and parts.
I kept 2 QT50s, and just can't seem to part with them, too much fun riding around the neighborhood. Restored the 2 QT50s, sold them :o(.
Update 2012 - just traded a drumset for 78,79 & 80 Express
Currently rebuilding the 79 with one of my sons, and may do a total restoration.