One scooter could easily have 5-10 trips per day. At $2/trip, the payback period on a $400 scooter is 20-40 days. The economics here (and with dockless bikes) are quite impressive, which is why billions of dollars has been dumped into dockless electric personal transportation companies over the last few years.

The bigger question here is whether people will adopt scooters when they are more comfortable on bikes.