A moped has pedals like a bicycle, a scooter does not.
When I got my Class B van/motorhome, I had no intent of taking a scooter with me but after selling the two Hondas I had (a 50cc and a 250cc) I went through withdrawls within days.
Now I have a 125cc Yamaha, and a heavy duty utility trailler I pull behind my van. It also serves the purpose of hauling my tools (in a bolted down, locking metal chest style truck toolbox) and some rubbermaid action packer boxes of personal belongings I can't seem to part with, nor can I fit in the van.
Who knows, I might find it's more trouble than it's worth but I highly doubt it. It offsets my van's horrible MPG by just one ride out on it. (80+ on the scooter vs 8-10 in the van).