Those spyder things are kind of a neat toy, I could see the appeal for people with limited leg strength, disabled, or people that want a sportier alternative to the standard fare Harley/Goldwing trike conversion. They can be really fun to drive on a nice curvy road, if you ever get the chance take one for a demo. Would I buy one? No. Too expensive, not fast enough, and while they handle quite well, it's not as fun as leaning. Unsurprisingly when I had it out for a demo nobody returned waves.
I'll wave to scooters if there's a cute girl riding it.....:in love:
Whenever I notice I'll wave (or pull in the clutch and rev it) to kids on bicycles. I remember as a kid thinking how awesome it would be one day to have an engine so I didn't have to pedal it. Me and some friends got a sportbiker to wave at us once(when we were like 10) and we thought it was like the coolest thing ever so I try to respond when kids on the sidewalk are screaming at me to do something.